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