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",     "maxtargets",   "20",                   new ValueContainerUInt (&this->MaxTargets),             DT_INTEGER, ValidateMaxTargets},
 674                 {"options",     "defaultmodes", "nt",                   new ValueContainerChar (this->DefaultModes),            DT_CHARPTR, NoValidation},
 675                 {"pid",         "file",         "",                     new ValueContainerChar (this->PID),                     DT_CHARPTR, NoValidation},
 676                 {"whowas",      "groupsize",    "10",                   new ValueContainerInt  (&this->WhoWasGroupSize),        DT_INTEGER, NoValidation},
 677                 {"whowas",      "maxgroups",    "10240",                new ValueContainerInt  (&this->WhoWasMaxGroups),        DT_INTEGER, NoValidation},
 678                 {"whowas",      "maxkeep",      "3600",                 new ValueContainerChar (maxkeep),                       DT_CHARPTR, ValidateWhoWas},
 679                 {"die",         "value",        "",                     new ValueContainerChar (this->DieValue),                DT_CHARPTR, NoValidation},
 680                 {"channels",    "users",        "20",                   new ValueContainerUInt (&this->MaxChans),               DT_INTEGER, NoValidation},
 681                 {"channels",    "opers",        "60",                   new ValueContainerUInt (&this->OperMaxChans),           DT_INTEGER, NoValidation},
 682                 {NULL}
 683         };
 684
 685         /* These tags can occur multiple times, and therefore they have special code to read them
 686          * which is different to the code for reading the singular tags listed above.
 687          */
 688         MultiConfig MultiValues[] = {
 689
 690                 {"connect",
 691                                 {"allow",       "deny",         "password",     "timeout",      "pingfreq",     "flood",
 692                                 "threshold",    "sendq",        "recvq",        "localmax",     "globalmax",    "port",
 693                                 "name",         "parent",       "maxchans",
 694                                 NULL},
 695                                 {"",            "",             "",             "",             "120",          "",
 696                                  "",            "",             "",             "3",            "3",            "0",
 697                                  "",            "",             "0",
 698                                  NULL},
 699                                 {DT_CHARPTR,    DT_CHARPTR,     DT_CHARPTR,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,
 700                                  DT_INTEGER,    DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,
 701                                  DT_CHARPTR,    DT_CHARPTR,     DT_INTEGER},
 702                                 InitConnect, DoConnect, DoneConnect},
 703
 704                 {"uline",
 705                                 {"server",      "silent",       NULL},
 706                                 {"",            "0",            NULL},
 707                                 {DT_CHARPTR,    DT_BOOLEAN},
 708                                 InitULine,DoULine,DoneULine},
 709
 710                 {"banlist",
 711                                 {"chan",        "limit",        NULL},
 712                                 {"",            "",             NULL},
 713                                 {DT_CHARPTR,    DT_INTEGER},
 714                                 InitMaxBans, DoMaxBans, DoneMaxBans},
 715
 716                 {"module",
 717                                 {"name",        NULL},
 718                                 {"",            NULL},
 719                                 {DT_CHARPTR},
 720                                 InitModule, DoModule, DoneModule},
 721
 722                 {"badip",
 723                                 {"reason",      "ipmask",       NULL},
 724                                 {"No reason",   "",             NULL},
 725                                 {DT_CHARPTR,    DT_CHARPTR},
 726                                 InitXLine, DoZLine, DoneZLine},
 727
 728                 {"badnick",
 729                                 {"reason",      "nick",         NULL},
 730                                 {"No reason",   "",             NULL},
 731                                 {DT_CHARPTR,    DT_CHARPTR},
 732                                 InitXLine, DoQLine, DoneQLine},
 733
 734                 {"badhost",
 735                                 {"reason",      "host",         NULL},
 736                                 {"No reason",   "",             NULL},
 737                                 {DT_CHARPTR,    DT_CHARPTR},
 738                                 InitXLine, DoKLine, DoneKLine},
 739
 740                 {"exception",
 741                                 {"reason",      "host",         NULL},
 742                                 {"No reason",   "",             NULL},
 743                                 {DT_CHARPTR,    DT_CHARPTR},
 744                                 InitXLine, DoELine, DoneELine},
 745
 746                 {"type",
 747                                 {"name",        "classes",      NULL},
 748                                 {"",            "",             NULL},
 749                                 {DT_CHARPTR,    DT_CHARPTR},
 750                                 InitTypes, DoType, DoneClassesAndTypes},
 751
 752                 {"class",
 753                                 {"name",        "commands",     NULL},
 754                                 {"",            "",             NULL},
 755                                 {DT_CHARPTR,    DT_CHARPTR},
 756                                 InitClasses, DoClass, DoneClassesAndTypes},
 757
 758                 {NULL}
 759         };
 760
 761         include_stack.clear();
 762
 763         /* Load and parse the config file, if there are any errors then explode */
 764
 765         /* Make a copy here so if it fails then we can carry on running with an unaffected config */
 766         ConfigDataHash newconfig;
 767
 768         if (this->LoadConf(newconfig, ServerInstance->ConfigFileName, errstr))
 769         {
 770                 /* If we succeeded, set the ircd config to the new one */
 771                 this->config_data = newconfig;
 772         }
 773         else
 774         {
 775                 ReportConfigError(errstr.str(), bail, user);
 776                 return;
 777         }
 778
 779         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 780         try
 781         {
 782                 /* Check we dont have more than one of singular tags, or any of them missing
 783                  */
 784                 for (int Index = 0; Once[Index]; Index++)
 785                         if (!CheckOnce(Once[Index], bail, user))
 786                                 return;
 787
 788                 /* Read the values of all the tags which occur once or not at all, and call their callbacks.
 789                  */
 790                 for (int Index = 0; Values[Index].tag; Index++)
 791                 {
 792                         char item[MAXBUF];
 793                         int dt = Values[Index].datatype;
 794                         bool allow_newlines =  ((dt & DT_ALLOW_NEWLINE) > 0);
 795                         dt &= ~DT_ALLOW_NEWLINE;
 796
 797                         ConfValue(this->config_data, Values[Index].tag, Values[Index].value, Values[Index].default_value, 0, item, MAXBUF, allow_newlines);
 798                         ValueItem vi(item);
 799
 800                         if (!Values[Index].validation_function(this, Values[Index].tag, Values[Index].value, vi))
 801                                 throw CoreException("One or more values in your configuration file failed to validate. Please see your ircd.log for more information.");
 802
 803                         switch (Values[Index].datatype)
 804                         {
 805                                 case DT_CHARPTR:
 806                                 {
 807                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 808                                         /* Make sure we also copy the null terminator */
 809                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 810                                 }
 811                                 break;
 812                                 case DT_INTEGER:
 813                                 {
 814                                         int val = vi.GetInteger();
 815                                         ValueContainerInt* vci = (ValueContainerInt*)Values[Index].val;
 816                                         vci->Set(&val, sizeof(int));
 817                                 }
 818                                 break;
 819                                 case DT_BOOLEAN:
 820                                 {
 821                                         bool val = vi.GetBool();
 822                                         ValueContainerBool* vcb = (ValueContainerBool*)Values[Index].val;
 823                                         vcb->Set(&val, sizeof(bool));
 824                                 }
 825                                 break;
 826                                 default:
 827                                         /* You don't want to know what happens if someones bad code sends us here. */
 828                                 break;
 829                         }
 830
 831                         /* We're done with this now */
 832                         delete Values[Index].val;
 833                 }
 834
 835                 /* Read the multiple-tag items (class tags, connect tags, etc)
 836                  * and call the callbacks associated with them. We have three
 837                  * callbacks for these, a 'start', 'item' and 'end' callback.
 838                  */
 839                 for (int Index = 0; MultiValues[Index].tag; Index++)
 840                 {
 841                         MultiValues[Index].init_function(this, MultiValues[Index].tag);
 842
 843                         int number_of_tags = ConfValueEnum(this->config_data, MultiValues[Index].tag);
 844
 845                         for (int tagnum = 0; tagnum < number_of_tags; tagnum++)
 846                         {
 847                                 ValueList vl;
 848                                 for (int valuenum = 0; MultiValues[Index].items[valuenum]; valuenum++)
 849                                 {
 850                                         int dt = MultiValues[Index].datatype[valuenum];
 851                                         bool allow_newlines =  ((dt & DT_ALLOW_NEWLINE) > 0);
 852                                         dt &= ~DT_ALLOW_NEWLINE;
 853
 854                                         switch (dt)
 855                                         {
 856                                                 case DT_CHARPTR:
 857                                                 {
 858                                                         char item[MAXBUF];
 859                                                         if (ConfValue(this->config_data, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
 860                                                                 vl.push_back(ValueItem(item));
 861                                                         else
 862                                                                 vl.push_back(ValueItem(""));
 863                                                 }
 864                                                 break;
 865                                                 case DT_INTEGER:
 866                                                 {
 867                                                         int item = 0;
 868                                                         if (ConfValueInteger(this->config_data, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item))
 869                                                                 vl.push_back(ValueItem(item));
 870                                                         else
 871                                                                 vl.push_back(ValueItem(0));
 872                                                 }
 873                                                 break;
 874                                                 case DT_BOOLEAN:
 875                                                 {
 876                                                         bool item = ConfValueBool(this->config_data, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum);
 877                                                         vl.push_back(ValueItem(item));
 878                                                 }
 879                                                 break;
 880                                                 default:
 881                                                         /* Someone was smoking craq if we got here, and we're all gonna die. */
 882                                                 break;
 883                                         }
 884                                 }
 885
 886                                 MultiValues[Index].validation_function(this, MultiValues[Index].tag, (char**)MultiValues[Index].items, vl, MultiValues[Index].datatype);
 887                         }
 888
 889                         MultiValues[Index].finish_function(this, MultiValues[Index].tag);
 890                 }
 891
 892         }
 893
 894         catch (CoreException &ce)
 895         {
 896                 ReportConfigError(ce.GetReason(), bail, user);
 897                 return;
 898         }
 899
 900         // write once here, to try it out and make sure its ok
 901         ServerInstance->WritePID(this->PID);
 902
 903         ServerInstance->Log(DEFAULT,"Done reading configuration file.");
 904
 905         /* If we're rehashing, let's load any new modules, and unload old ones
 906          */
 907         if (!bail)
 908         {
 909                 int found_ports = 0;
 910                 FailedPortList pl;
 911                 ServerInstance->BindPorts(false, found_ports, pl);
 912
 913                 if (pl.size() && user)
 914                 {
 915                         user->WriteServ("NOTICE %s :*** Not all your client ports could be bound.", user->nick);
 916                         user->WriteServ("NOTICE %s :*** The following port(s) failed to bind:", user->nick);
 917                         int j = 1;
 918                         for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 919                         {
 920                                 user->WriteServ("NOTICE %s :*** %d.   IP: %s     Port: %lu", user->nick, j, i->first.empty() ? "<all>" : i->first.c_str(), (unsigned long)i->second);
 921                         }
 922                 }
 923
 924                 if (!removed_modules.empty())
 925                 {
 926                         for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
 927                         {
 928                                 if (ServerInstance->UnloadModule(removing->c_str()))
 929                                 {
 930                                         ServerInstance->WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
 931
 932                                         if (user)
 933                                                 user->WriteServ("973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
 934
 935                                         rem++;
 936                                 }
 937                                 else
 938                                 {
 939                                         if (user)
 940                                                 user->WriteServ("972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ServerInstance->ModuleError());
 941                                 }
 942                         }
 943                 }
 944
 945                 if (!added_modules.empty())
 946                 {
 947                         for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 948                         {
 949                                 if (ServerInstance->LoadModule(adding->c_str()))
 950                                 {
 951                                         ServerInstance->WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
 952
 953                                         if (user)
 954                                                 user->WriteServ("975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
 955
 956                                         add++;
 957                                 }
 958                                 else
 959                                 {
 960                                         if (user)
 961                                                 user->WriteServ("974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ServerInstance->ModuleError());
 962                                 }
 963                         }
 964                 }
 965
 966                 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());
 967         }
 968
 969         /** Note: This is safe, the method checks for user == NULL */
 970         ServerInstance->Parser->SetupCommandTable(user);
 971
 972         if (user)
 973                 user->WriteServ("NOTICE %s :*** Successfully rehashed server.", user->nick);
 974         else
 975                 ServerInstance->WriteOpers("*** Successfully rehashed server.");
 976 }
 977
 978 bool ServerConfig::LoadConf(ConfigDataHash &target, const char* filename, std::ostringstream &errorstream)
 979 {
 980         std::ifstream conf(filename);
 981         std::string line;
 982         char ch;
 983         long linenumber;
 984         bool in_tag;
 985         bool in_quote;
 986         bool in_comment;
 987         int character_count = 0;
 988
 989         linenumber = 1;
 990         in_tag = false;
 991         in_quote = false;
 992         in_comment = false;
 993
 994         /* Check if the file open failed first */
 995         if (!conf)
 996         {
 997                 errorstream << "LoadConf: Couldn't open config file: " << filename << std::endl;
 998                 return false;
 999         }
1000
1001         /* Fix the chmod of the file to restrict it to the current user and group */
1002         chmod(filename,0600);
1003
1004         for (unsigned int t = 0; t < include_stack.size(); t++)
1005         {
1006                 if (std::string(filename) == include_stack[t])
1007                 {
1008                         errorstream << "File " << filename << " is included recursively (looped inclusion)." << std::endl;
1009                         return false;
1010                 }
1011         }
1012
1013         /* It's not already included, add it to the list of files we've loaded */
1014         include_stack.push_back(filename);
1015
1016         /* Start reading characters... */
1017         while (conf.get(ch))
1018         {
1019
1020                 /*
1021                  * Fix for moronic windows issue spotted by Adremelech.
1022                  * Some windows editors save text files as utf-16, which is
1023                  * a total pain in the ass to parse. Users should save in the
1024                  * right config format! If we ever see a file where the first
1025                  * byte is 0xFF or 0xFE, or the second is 0xFF or 0xFE, then
1026                  * this is most likely a utf-16 file. Bail out and insult user.
1027                  */
1028                 if ((character_count++ < 2) && (ch == '\xFF' || ch == '\xFE'))
1029                 {
1030                         errorstream << "File " << filename << " cannot be read, as it is encoded in braindead UTF-16. Save your file as plain ASCII!" << std::endl;
1031                         return false;
1032                 }
1033
1034                 /*
1035                  * Here we try and get individual tags on separate lines,
1036                  * this would be so easy if we just made people format
1037                  * their config files like that, but they don't so...
1038                  * We check for a '<' and then know the line is over when
1039                  * we get a '>' not inside quotes. If we find two '<' and
1040                  * no '>' then die with an error.
1041                  */
1042
1043                 if ((ch == '#') && !in_quote)
1044                         in_comment = true;
1045
1046                 switch (ch)
1047                 {
1048                         case '\n':
1049                                 if (in_quote)
1050                                         line += '\n';
1051                                 linenumber++;
1052                         case '\r':
1053                                 if (!in_quote)
1054                                         in_comment = false;
1055                         case '\0':
1056                                 continue;
1057                         case '\t':
1058                                 ch = ' ';
1059                 }
1060
1061                 if(in_comment)
1062                         continue;
1063
1064                 /* XXX: Added by Brain, May 1st 2006 - Escaping of characters.
1065                  * Note that this WILL NOT usually allow insertion of newlines,
1066                  * because a newline is two characters long. Use it primarily to
1067                  * insert the " symbol.
1068                  *
1069                  * Note that this also involves a further check when parsing the line,
1070                  * which can be found below.
1071                  */
1072                 if ((ch == '\\') && (in_quote) && (in_tag))
1073                 {
1074                         line += ch;
1075                         char real_character;
1076                         if (conf.get(real_character))
1077                         {
1078                                 if (real_character == 'n')
1079                                         real_character = '\n';
1080                                 line += real_character;
1081                                 continue;
1082                         }
1083                         else
1084                         {
1085                                 errorstream << "End of file after a \\, what did you want to escape?: " << filename << ":" << linenumber << std::endl;
1086                                 return false;
1087                         }
1088                 }
1089
1090                 if (ch != '\r')
1091                         line += ch;
1092
1093                 if (ch == '<')
1094                 {
1095                         if (in_tag)
1096                         {
1097                                 if (!in_quote)
1098                                 {
1099                                         errorstream << "Got another opening < when the first one wasn't closed: " << filename << ":" << linenumber << std::endl;
1100                                         return false;
1101                                 }
1102                         }
1103                         else
1104                         {
1105                                 if (in_quote)
1106                                 {
1107                                         errorstream << "We're in a quote but outside a tag, interesting. " << filename << ":" << linenumber << std::endl;
1108                                         return false;
1109                                 }
1110                                 else
1111                                 {
1112                                         // errorstream << "Opening new config tag on line " << linenumber << std::endl;
1113                                         in_tag = true;
1114                                 }
1115                         }
1116                 }
1117                 else if (ch == '"')
1118                 {
1119                         if (in_tag)
1120                         {
1121                                 if (in_quote)
1122                                 {
1123                                         // errorstream << "Closing quote in config tag on line " << linenumber << std::endl;
1124                                         in_quote = false;
1125                                 }
1126                                 else
1127                                 {
1128                                         // errorstream << "Opening quote in config tag on line " << linenumber << std::endl;
1129                                         in_quote = true;
1130                                 }
1131                         }
1132                         else
1133                         {
1134                                 if (in_quote)
1135                                 {
1136                                         errorstream << "Found a (closing) \" outside a tag: " << filename << ":" << linenumber << std::endl;
1137                                 }
1138                                 else
1139                                 {
1140                                         errorstream << "Found a (opening) \" outside a tag: " << filename << ":" << linenumber << std::endl;
1141                                 }
1142                         }
1143                 }
1144                 else if (ch == '>')
1145                 {
1146                         if (!in_quote)
1147                         {
1148                                 if (in_tag)
1149                                 {
1150                                         // errorstream << "Closing config tag on line " << linenumber << std::endl;
1151                                         in_tag = false;
1152
1153                                         /*
1154                                          * If this finds an <include> then ParseLine can simply call
1155                                          * LoadConf() and load the included config into the same ConfigDataHash
1156                                          */
1157
1158                                         if (!this->ParseLine(target, line, linenumber, errorstream))
1159                                                 return false;
1160
1161                                         line.clear();
1162                                 }
1163                                 else
1164                                 {
1165                                         errorstream << "Got a closing > when we weren't inside a tag: " << filename << ":" << linenumber << std::endl;
1166                                         return false;
1167                                 }
1168                         }
1169                 }
1170         }
1171
1172         /* 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 */
1173         if (in_comment || in_quote)
1174         {
1175                 errorstream << "Reached end of file whilst still inside a quoted section or tag. This is most likely an error or there \
1176                         is a newline missing from the end of the file: " << filename << ":" << linenumber << std::endl;
1177         }
1178
1179         return true;
1180 }
1181
1182 bool ServerConfig::LoadConf(ConfigDataHash &target, const std::string &filename, std::ostringstream &errorstream)
1183 {
1184         return this->LoadConf(target, filename.c_str(), errorstream);
1185 }
1186
1187 bool ServerConfig::ParseLine(ConfigDataHash &target, std::string &line, long &linenumber, std::ostringstream &errorstream)
1188 {
1189         std::string tagname;
1190         std::string current_key;
1191         std::string current_value;
1192         KeyValList results;
1193         bool got_name;
1194         bool got_key;
1195         bool in_quote;
1196
1197         got_name = got_key = in_quote = false;
1198
1199         for(std::string::iterator c = line.begin(); c != line.end(); c++)
1200         {
1201                 if (!got_name)
1202                 {
1203                         /* We don't know the tag name yet. */
1204
1205                         if (*c != ' ')
1206                         {
1207                                 if (*c != '<')
1208                                 {
1209                                         tagname += *c;
1210                                 }
1211                         }
1212                         else
1213                         {
1214                                 /* We got to a space, we should have the tagname now. */
1215                                 if(tagname.length())
1216                                 {
1217                                         got_name = true;
1218                                 }
1219                         }
1220                 }
1221                 else
1222                 {
1223                         /* We have the tag name */
1224                         if (!got_key)
1225                         {
1226                                 /* We're still reading the key name */
1227                                 if (*c != '=')
1228                                 {
1229                                         if (*c != ' ')
1230                                         {
1231                                                 current_key += *c;
1232                                         }
1233                                 }
1234                                 else
1235                                 {
1236                                         /* We got an '=', end of the key name. */
1237                                         got_key = true;
1238                                 }
1239                         }
1240                         else
1241                         {
1242                                 /* We have the key name, now we're looking for quotes and the value */
1243
1244                                 /* Correctly handle escaped characters here.
1245                                  * See the XXX'ed section above.
1246                                  */
1247                                 if ((*c == '\\') && (in_quote))
1248                                 {
1249                                         c++;
1250                                         if (*c == 'n')
1251                                                 current_value += '\n';
1252                                         else
1253                                                 current_value += *c;
1254                                         continue;
1255                                 }
1256                                 else if ((*c == '\n') && (in_quote))
1257                                 {
1258                                         /* Got a 'real' \n, treat it as part of the value */
1259                                         current_value += '\n';
1260                                         linenumber++;
1261                                         continue;
1262                                 }
1263                                 else if ((*c == '\r') && (in_quote))
1264                                         /* Got a \r, drop it */
1265                                         continue;
1266
1267                                 if (*c == '"')
1268                                 {
1269                                         if (!in_quote)
1270                                         {
1271                                                 /* We're not already in a quote. */
1272                                                 in_quote = true;
1273                                         }
1274                                         else
1275                                         {
1276                                                 /* Leaving quotes, we have the value */
1277                                                 results.push_back(KeyVal(current_key, current_value));
1278
1279                                                 // std::cout << "<" << tagname << ":" << current_key << "> " << current_value << std::endl;
1280
1281                                                 in_quote = false;
1282                                                 got_key = false;
1283
1284                                                 if ((tagname == "include") && (current_key == "file"))
1285                                                 {
1286                                                         if (!this->DoInclude(target, current_value, errorstream))
1287                                                                 return false;
1288                                                 }
1289
1290                                                 current_key.clear();
1291                                                 current_value.clear();
1292                                         }
1293                                 }
1294                                 else
1295                                 {
1296                                         if (in_quote)
1297                                         {
1298                                                 current_value += *c;
1299                                         }
1300                                 }
1301                         }
1302                 }
1303         }
1304
1305         /* Finished parsing the tag, add it to the config hash */
1306         target.insert(std::pair<std::string, KeyValList > (tagname, results));
1307
1308         return true;
1309 }
1310
1311 bool ServerConfig::DoInclude(ConfigDataHash &target, const std::string &file, std::ostringstream &errorstream)
1312 {
1313         std::string confpath;
1314         std::string newfile;
1315         std::string::size_type pos;
1316
1317         confpath = ServerInstance->ConfigFileName;
1318         newfile = file;
1319
1320         for (std::string::iterator c = newfile.begin(); c != newfile.end(); c++)
1321         {
1322                 if (*c == '\\')
1323                 {
1324                         *c = '/';
1325                 }
1326         }
1327
1328         if (file[0] != '/')
1329         {
1330                 if((pos = confpath.rfind("/")) != std::string::npos)
1331                 {
1332                         /* Leaves us with just the path */
1333                         newfile = confpath.substr(0, pos) + std::string("/") + newfile;
1334                 }
1335                 else
1336                 {
1337                         errorstream << "Couldn't get config path from: " << confpath << std::endl;
1338                         return false;
1339                 }
1340         }
1341
1342         return LoadConf(target, newfile, errorstream);
1343 }
1344
1345 bool ServerConfig::ConfValue(ConfigDataHash &target, const char* tag, const char* var, int index, char* result, int length, bool allow_linefeeds)
1346 {
1347         return ConfValue(target, tag, var, "", index, result, length, allow_linefeeds);
1348 }
1349
1350 bool ServerConfig::ConfValue(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, char* result, int length, bool allow_linefeeds)
1351 {
1352         std::string value;
1353         bool r = ConfValue(target, std::string(tag), std::string(var), std::string(default_value), index, value, allow_linefeeds);
1354         strlcpy(result, value.c_str(), length);
1355         return r;
1356 }
1357
1358 bool ServerConfig::ConfValue(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, std::string &result, bool allow_linefeeds)
1359 {
1360         return ConfValue(target, tag, var, "", index, result, allow_linefeeds);
1361 }
1362
1363 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)
1364 {
1365         ConfigDataHash::size_type pos = index;
1366         if((pos >= 0) && (pos < target.count(tag)))
1367         {
1368                 ConfigDataHash::iterator iter = target.find(tag);
1369
1370                 for(int i = 0; i < index; i++)
1371                         iter++;
1372
1373                 for(KeyValList::iterator j = iter->second.begin(); j != iter->second.end(); j++)
1374                 {
1375                         if(j->first == var)
1376                         {
1377                                 if ((!allow_linefeeds) && (j->second.find('\n') != std::string::npos))
1378                                 {
1379                                         ServerInstance->Log(DEFAULT, "Value of <" + tag + ":" + var+ "> contains a linefeed, and linefeeds in this value are not permitted -- stripped to spaces.");
1380                                         for (std::string::iterator n = j->second.begin(); n != j->second.end(); n++)
1381                                                 if (*n == '\n')
1382                                                         *n = ' ';
1383                                 }
1384                                 else
1385                                 {
1386                                         result = j->second;
1387                                         return true;
1388                                 }
1389                         }
1390                 }
1391                 if (!default_value.empty())
1392                 {
1393                         result = default_value;
1394                         return true;
1395                 }
1396         }
1397         else if(pos == 0)
1398         {
1399                 if (!default_value.empty())
1400                 {
1401                         result = default_value;
1402                         return true;
1403                 }
1404         }
1405         return false;
1406 }
1407
1408 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, int index, int &result)
1409 {
1410         return ConfValueInteger(target, std::string(tag), std::string(var), "", index, result);
1411 }
1412
1413 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, int &result)
1414 {
1415         return ConfValueInteger(target, std::string(tag), std::string(var), std::string(default_value), index, result);
1416 }
1417
1418 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, int &result)
1419 {
1420         return ConfValueInteger(target, tag, var, "", index, result);
1421 }
1422
1423 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index, int &result)
1424 {
1425         std::string value;
1426         std::istringstream stream;
1427         bool r = ConfValue(target, tag, var, default_value, index, value);
1428         stream.str(value);
1429         if(!(stream >> result))
1430                 return false;
1431         else
1432         {
1433                 if (!value.empty())
1434                 {
1435                         if (value.substr(0,2) == "0x")
1436                         {
1437                                 char* endptr;
1438
1439                                 value.erase(0,2);
1440                                 result = strtol(value.c_str(), &endptr, 16);
1441
1442                                 /* No digits found */
1443                                 if (endptr == value.c_str())
1444                                         return false;
1445                         }
1446                         else
1447                         {
1448                                 char denominator = *(value.end() - 1);
1449                                 switch (toupper(denominator))
1450                                 {
1451                                         case 'K':
1452                                                 /* Kilobytes -> bytes */
1453                                                 result = result * 1024;
1454                                         break;
1455                                         case 'M':
1456                                                 /* Megabytes -> bytes */
1457                                                 result = result * 1024 * 1024;
1458                                         break;
1459                                         case 'G':
1460                                                 /* Gigabytes -> bytes */
1461                                                 result = result * 1024 * 1024 * 1024;
1462                                         break;
1463                                 }
1464                         }
1465                 }
1466         }
1467         return r;
1468 }
1469
1470
1471 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, int index)
1472 {
1473         return ConfValueBool(target, std::string(tag), std::string(var), "", index);
1474 }
1475
1476 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index)
1477 {
1478         return ConfValueBool(target, std::string(tag), std::string(var), std::string(default_value), index);
1479 }
1480
1481 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, int index)
1482 {
1483         return ConfValueBool(target, tag, var, "", index);
1484 }
1485
1486 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index)
1487 {
1488         std::string result;
1489         if(!ConfValue(target, tag, var, default_value, index, result))
1490                 return false;
1491
1492         return ((result == "yes") || (result == "true") || (result == "1"));
1493 }
1494
1495 int ServerConfig::ConfValueEnum(ConfigDataHash &target, const char* tag)
1496 {
1497         return target.count(tag);
1498 }
1499
1500 int ServerConfig::ConfValueEnum(ConfigDataHash &target, const std::string &tag)
1501 {
1502         return target.count(tag);
1503 }
1504
1505 int ServerConfig::ConfVarEnum(ConfigDataHash &target, const char* tag, int index)
1506 {
1507         return ConfVarEnum(target, std::string(tag), index);
1508 }
1509
1510 int ServerConfig::ConfVarEnum(ConfigDataHash &target, const std::string &tag, int index)
1511 {
1512         ConfigDataHash::size_type pos = index;
1513
1514         if((pos >= 0) && (pos < target.count(tag)))
1515         {
1516                 ConfigDataHash::const_iterator iter = target.find(tag);
1517
1518                 for(int i = 0; i < index; i++)
1519                         iter++;
1520
1521                 return iter->second.size();
1522         }
1523
1524         return 0;
1525 }
1526
1527 /** Read the contents of a file located by `fname' into a file_cache pointed at by `F'.
1528  */
1529 bool ServerConfig::ReadFile(file_cache &F, const char* fname)
1530 {
1531         if (!fname || !*fname)
1532                 return false;
1533
1534         FILE* file = NULL;
1535         char linebuf[MAXBUF];
1536
1537         F.clear();
1538
1539         if ((*fname != '/') && (*fname != '\\'))
1540         {
1541                 std::string::size_type pos;
1542                 std::string confpath = ServerInstance->ConfigFileName;
1543                 std::string newfile = fname;
1544
1545                 if ((pos = confpath.rfind("/")) != std::string::npos)
1546                         newfile = confpath.substr(0, pos) + std::string("/") + fname;
1547                 else if ((pos = confpath.rfind("\\")) != std::string::npos)
1548                         newfile = confpath.substr(0, pos) + std::string("\\") + fname;
1549
1550                 if (!FileExists(newfile.c_str()))
1551                         return false;
1552                 file =  fopen(newfile.c_str(), "r");
1553         }
1554         else
1555         {
1556                 if (!FileExists(fname))
1557                         return false;
1558                 file =  fopen(fname, "r");
1559         }
1560
1561         if (file)
1562         {
1563                 while (!feof(file))
1564                 {
1565                         if (fgets(linebuf, sizeof(linebuf), file))
1566                                 linebuf[strlen(linebuf)-1] = 0;
1567                         else
1568                                 *linebuf = 0;
1569
1570                         if (!feof(file))
1571                         {
1572                                 F.push_back(*linebuf ? linebuf : " ");
1573                         }
1574                 }
1575
1576                 fclose(file);
1577         }
1578         else
1579                 return false;
1580
1581         return true;
1582 }
1583
1584 bool ServerConfig::FileExists(const char* file)
1585 {
1586         struct stat sb;
1587         if (stat(file, &sb) == -1)
1588                 return false;
1589
1590         if ((sb.st_mode & S_IFDIR) > 0)
1591                 return false;
1592
1593         FILE *input;
1594         if ((input = fopen (file, "r")) == NULL)
1595                 return false;
1596         else
1597         {
1598                 fclose(input);
1599                 return true;
1600         }
1601 }
1602
1603 char* ServerConfig::CleanFilename(char* name)
1604 {
1605         char* p = name + strlen(name);
1606         while ((p != name) && (*p != '/') && (*p != '\\')) p--;
1607         return (p != name ? ++p : p);
1608 }
1609
1610
1611 bool ServerConfig::DirValid(const char* dirandfile)
1612 {
1613 #ifdef WINDOWS
1614         return true;
1615 #endif
1616
1617         char work[1024];
1618         char buffer[1024];
1619         char otherdir[1024];
1620         int p;
1621
1622         strlcpy(work, dirandfile, 1024);
1623         p = strlen(work);
1624
1625         // we just want the dir
1626         while (*work)
1627         {
1628                 if (work[p] == '/')
1629                 {
1630                         work[p] = '\0';
1631                         break;
1632                 }
1633
1634                 work[p--] = '\0';
1635         }
1636
1637         // Get the current working directory
1638         if (getcwd(buffer, 1024 ) == NULL )
1639                 return false;
1640
1641         if (chdir(work) == -1)
1642                 return false;
1643
1644         if (getcwd(otherdir, 1024 ) == NULL )
1645                 return false;
1646
1647         if (chdir(buffer) == -1)
1648                 return false;
1649
1650         size_t t = strlen(work);
1651
1652         if (strlen(otherdir) >= t)
1653         {
1654                 otherdir[t] = '\0';
1655                 if (!strcmp(otherdir,work))
1656                 {
1657                         return true;
1658                 }
1659
1660                 return false;
1661         }
1662         else
1663         {
1664                 return false;
1665         }
1666 }
1667
1668 std::string ServerConfig::GetFullProgDir()
1669 {
1670         char buffer[PATH_MAX+1];
1671 #ifdef WINDOWS
1672         /* Windows has specific api calls to get the exe path that never fail.
1673          * For once, windows has something of use, compared to the POSIX code
1674          * for this, this is positively neato.
1675          */
1676         if (GetModuleFileName(NULL, buffer, MAX_PATH))
1677         {
1678                 std::string fullpath = buffer;
1679                 std::string::size_type n = fullpath.rfind("\\inspircd.exe");
1680                 return std::string(fullpath, 0, n);
1681         }
1682 #else
1683         // Get the current working directory
1684         if (getcwd(buffer, PATH_MAX))
1685         {
1686                 std::string remainder = this->argv[0];
1687
1688                 /* Does argv[0] start with /? its a full path, use it */
1689                 if (remainder[0] == '/')
1690                 {
1691                         std::string::size_type n = remainder.rfind("/inspircd");
1692                         return std::string(remainder, 0, n);
1693                 }
1694
1695                 std::string fullpath = std::string(buffer) + "/" + remainder;
1696                 std::string::size_type n = fullpath.rfind("/inspircd");
1697                 return std::string(fullpath, 0, n);
1698         }
1699 #endif
1700         return "/";
1701 }
1702
1703 InspIRCd* ServerConfig::GetInstance()
1704 {
1705         return ServerInstance;
1706 }
1707
1708
1709 ValueItem::ValueItem(int value)
1710 {
1711         std::stringstream n;
1712         n << value;
1713         v = n.str();
1714 }
1715
1716 ValueItem::ValueItem(bool value)
1717 {
1718         std::stringstream n;
1719         n << value;
1720         v = n.str();
1721 }
1722
1723 ValueItem::ValueItem(char* value)
1724 {
1725         v = value;
1726 }
1727
1728 void ValueItem::Set(char* value)
1729 {
1730         v = value;
1731 }
1732
1733 void ValueItem::Set(const char* value)
1734 {
1735         v = value;
1736 }
1737
1738 void ValueItem::Set(int value)
1739 {
1740         std::stringstream n;
1741         n << value;
1742         v = n.str();
1743 }
1744
1745 int ValueItem::GetInteger()
1746 {
1747         if (v.empty())
1748                 return 0;
1749         return atoi(v.c_str());
1750 }
1751
1752 char* ValueItem::GetString()
1753 {
1754         return (char*)v.c_str();
1755 }
1756
1757 bool ValueItem::GetBool()
1758 {
1759         return (GetInteger() || v == "yes" || v == "true");
1760 }
1761