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 ServerConfig::ServerConfig(InspIRCd* Instance) : ServerInstance(Instance)
  25 {
  26         this->ClearStack();
  27         *ServerName = *Network = *ServerDesc = *AdminName = '\0';
  28         *HideWhoisServer = *AdminEmail = *AdminNick = *diepass = *restartpass = *FixedQuit = *HideKillsServer = '\0';
  29         *DefaultModes = *CustomVersion = *motd = *rules = *PrefixQuit = *DieValue = *DNSServer = '\0';
  30         *UserStats = *ModPath = *MyExecutable = *DisabledCommands = *PID = *SuffixQuit = '\0';
  31         WhoWasGroupSize = WhoWasMaxGroups = WhoWasMaxKeep = 0;
  32         log_file = NULL;
  33         NoUserDns = forcedebug = OperSpyWhois = nofork = HideBans = HideSplits = UndernetMsgPrefix = false;
  34         CycleHosts = writelog = AllowHalfop = true;
  35         dns_timeout = DieDelay = 5;
  36         MaxTargets = 20;
  37         NetBufferSize = 10240;
  38         SoftLimit = MAXCLIENTS;
  39         MaxConn = SOMAXCONN;
  40         MaxWhoResults = 100;
  41         debugging = 0;
  42         MaxChans = 20;
  43         OperMaxChans = 30;
  44         LogLevel = DEFAULT;
  45         maxbans.clear();
  46 }
  47
  48 void ServerConfig::ClearStack()
  49 {
  50         include_stack.clear();
  51 }
  52
  53 Module* ServerConfig::GetIOHook(int port)
  54 {
  55         std::map<int,Module*>::iterator x = IOHookModule.find(port);
  56         return (x != IOHookModule.end() ? x->second : NULL);
  57 }
  58
  59 Module* ServerConfig::GetIOHook(InspSocket* is)
  60 {
  61         std::map<InspSocket*,Module*>::iterator x = SocketIOHookModule.find(is);
  62         return (x != SocketIOHookModule.end() ? x->second : NULL);
  63 }
  64
  65 bool ServerConfig::AddIOHook(int port, Module* iomod)
  66 {
  67         if (!GetIOHook(port))
  68         {
  69                 IOHookModule[port] = iomod;
  70                 return true;
  71         }
  72         else
  73         {
  74                 throw ModuleException("Port already hooked by another module");
  75                 return false;
  76         }
  77 }
  78
  79 bool ServerConfig::AddIOHook(Module* iomod, InspSocket* is)
  80 {
  81         if (!GetIOHook(is))
  82         {
  83                 SocketIOHookModule[is] = iomod;
  84                 is->IsIOHooked = true;
  85                 return true;
  86         }
  87         else
  88         {
  89                 throw ModuleException("InspSocket derived class already hooked by another module");
  90                 return false;
  91         }
  92 }
  93
  94 bool ServerConfig::DelIOHook(int port)
  95 {
  96         std::map<int,Module*>::iterator x = IOHookModule.find(port);
  97         if (x != IOHookModule.end())
  98         {
  99                 IOHookModule.erase(x);
 100                 return true;
 101         }
 102         return false;
 103 }
 104
 105 bool ServerConfig::DelIOHook(InspSocket* is)
 106 {
 107         std::map<InspSocket*,Module*>::iterator x = SocketIOHookModule.find(is);
 108         if (x != SocketIOHookModule.end())
 109         {
 110                 SocketIOHookModule.erase(x);
 111                 return true;
 112         }
 113         return false;
 114 }
 115
 116 void ServerConfig::Update005()
 117 {
 118         std::stringstream out(data005);
 119         std::string token;
 120         std::string line5;
 121         int token_counter = 0;
 122         isupport.clear();
 123         while (out >> token)
 124         {
 125                 line5 = line5 + token + " ";
 126                 token_counter++;
 127                 if (token_counter >= 13)
 128                 {
 129                         char buf[MAXBUF];
 130                         snprintf(buf, MAXBUF, "%s:are supported by this server", line5.c_str());
 131                         isupport.push_back(buf);
 132                         line5 = "";
 133                         token_counter = 0;
 134                 }
 135         }
 136         if (!line5.empty())
 137         {
 138                 char buf[MAXBUF];
 139                 snprintf(buf, MAXBUF, "%s:are supported by this server", line5.c_str());
 140                 isupport.push_back(buf);
 141         }
 142 }
 143
 144 void ServerConfig::Send005(userrec* user)
 145 {
 146         for (std::vector<std::string>::iterator line = ServerInstance->Config->isupport.begin(); line != ServerInstance->Config->isupport.end(); line++)
 147                 user->WriteServ("005 %s %s", user->nick, line->c_str());
 148 }
 149
 150 bool ServerConfig::CheckOnce(char* tag, bool bail, userrec* user)
 151 {
 152         int count = ConfValueEnum(this->config_data, tag);
 153
 154         if (count > 1)
 155         {
 156                 throw CoreException("You have more than one <"+std::string(tag)+"> tag, this is not permitted.");
 157                 return false;
 158         }
 159         if (count < 1)
 160         {
 161                 throw CoreException("You have not defined a <"+std::string(tag)+"> tag, this is required.");
 162                 return false;
 163         }
 164         return true;
 165 }
 166
 167 bool NoValidation(ServerConfig* conf, const char* tag, const char* value, ValueItem &data)
 168 {
 169         return true;
 170 }
 171
 172 bool ValidateMaxTargets(ServerConfig* conf, const char* tag, const char* value, ValueItem &data)
 173 {
 174         if ((data.GetInteger() < 0) || (data.GetInteger() > 31))
 175         {
 176                 conf->GetInstance()->Log(DEFAULT,"WARNING: <options:maxtargets> value is greater than 31 or less than 0, set to 20.");
 177                 data.Set(20);
 178         }
 179         return true;
 180 }
 181
 182 bool ValidateSoftLimit(ServerConfig* conf, const char* tag, const char* value, ValueItem &data)
 183 {
 184         if ((data.GetInteger() < 1) || (data.GetInteger() > MAXCLIENTS))
 185         {
 186                 conf->GetInstance()->Log(DEFAULT,"WARNING: <options:softlimit> value is greater than %d or less than 0, set to %d.",MAXCLIENTS,MAXCLIENTS);
 187                 data.Set(MAXCLIENTS);
 188         }
 189         return true;
 190 }
 191
 192 bool ValidateMaxConn(ServerConfig* conf, const char* tag, const char* value, ValueItem &data)
 193 {
 194         if (data.GetInteger() > SOMAXCONN)
 195                 conf->GetInstance()->Log(DEFAULT,"WARNING: <options:somaxconn> value may be higher than the system-defined SOMAXCONN value!");
 196         return true;
 197 }
 198
 199 bool InitializeDisabledCommands(const char* data, InspIRCd* ServerInstance)
 200 {
 201         std::stringstream dcmds(data);
 202         std::string thiscmd;
 203
 204         /* Enable everything first */
 205         for (command_table::iterator x = ServerInstance->Parser->cmdlist.begin(); x != ServerInstance->Parser->cmdlist.end(); x++)
 206                 x->second->Disable(false);
 207
 208         /* Now disable all the ones which the user wants disabled */
 209         while (dcmds >> thiscmd)
 210         {
 211                 command_table::iterator cm = ServerInstance->Parser->cmdlist.find(thiscmd);
 212                 if (cm != ServerInstance->Parser->cmdlist.end())
 213                 {
 214                         cm->second->Disable(true);
 215                 }
 216         }
 217         return true;
 218 }
 219
 220 bool ValidateDnsServer(ServerConfig* conf, const char* tag, const char* value, ValueItem &data)
 221 {
 222         if (!*(data.GetString()))
 223         {
 224                 std::string nameserver;
 225 #ifdef WINDOWS
 226                 conf->GetInstance()->Log(DEFAULT,"WARNING: <dns:server> not defined, attempting to find working server in the registry...");
 227                 nameserver = FindNameServerWin();
 228                 data.Set(nameserver.c_str());
 229                 conf->GetInstance()->Log(DEFAULT,"<dns:server> set to '%s' as first active resolver in registry.", nameserver.c_str());
 230 #else
 231                 // attempt to look up their nameserver from /etc/resolv.conf
 232                 conf->GetInstance()->Log(DEFAULT,"WARNING: <dns:server> not defined, attempting to find working server in /etc/resolv.conf...");
 233                 ifstream resolv("/etc/resolv.conf");
 234                 bool found_server = false;
 235
 236                 if (resolv.is_open())
 237                 {
 238                         while (resolv >> nameserver)
 239                         {
 240                                 if ((nameserver == "nameserver") && (!found_server))
 241                                 {
 242                                         resolv >> nameserver;
 243                                         data.Set(nameserver.c_str());
 244                                         found_server = true;
 245                                         conf->GetInstance()->Log(DEFAULT,"<dns:server> set to '%s' as first resolver in /etc/resolv.conf.",nameserver.c_str());
 246                                 }
 247                         }
 248
 249                         if (!found_server)
 250                         {
 251                                 conf->GetInstance()->Log(DEFAULT,"/etc/resolv.conf contains no viable nameserver entries! Defaulting to nameserver '127.0.0.1'!");
 252                                 data.Set("127.0.0.1");
 253                         }
 254                 }
 255                 else
 256                 {
 257                         conf->GetInstance()->Log(DEFAULT,"/etc/resolv.conf can't be opened! Defaulting to nameserver '127.0.0.1'!");
 258                         data.Set("127.0.0.1");
 259                 }
 260 #endif
 261         }
 262         return true;
 263 }
 264
 265 bool ValidateServerName(ServerConfig* conf, const char* tag, const char* value, ValueItem &data)
 266 {
 267         /* If we already have a servername, and they changed it, we should throw an exception. */
 268         if ((strcasecmp(conf->ServerName, data.GetString())) && (*conf->ServerName))
 269         {
 270                 throw CoreException("Configuration error: You cannot change your servername at runtime! Please restart your server for this change to be applied.");
 271                 /* XXX: We don't actually reach this return of course... */
 272                 return false;
 273         }
 274         if (!strchr(data.GetString(),'.'))
 275         {
 276                 conf->GetInstance()->Log(DEFAULT,"WARNING: <server:name> '%s' is not a fully-qualified domain name. Changed to '%s%c'",data.GetString(),data.GetString(),'.');
 277                 std::string moo = std::string(data.GetString()).append(".");
 278                 data.Set(moo.c_str());
 279         }
 280         return true;
 281 }
 282
 283 bool ValidateNetBufferSize(ServerConfig* conf, const char* tag, const char* value, ValueItem &data)
 284 {
 285         if ((!data.GetInteger()) || (data.GetInteger() > 65535) || (data.GetInteger() < 1024))
 286         {
 287                 conf->GetInstance()->Log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 288                 data.Set(10240);
 289         }
 290         return true;
 291 }
 292
 293 bool ValidateMaxWho(ServerConfig* conf, const char* tag, const char* value, ValueItem &data)
 294 {
 295         if ((!data.GetInteger()) || (data.GetInteger() > 65535) || (data.GetInteger() < 1))
 296         {
 297                 conf->GetInstance()->Log(DEFAULT,"No MaxWhoResults specified or size out of range, setting to default of 128.");
 298                 data.Set(128);
 299         }
 300         return true;
 301 }
 302
 303 bool ValidateLogLevel(ServerConfig* conf, const char* tag, const char* value, ValueItem &data)
 304 {
 305         std::string dbg = data.GetString();
 306         conf->LogLevel = DEFAULT;
 307
 308         if (dbg == "debug")
 309                 conf->LogLevel = DEBUG;
 310         else if (dbg  == "verbose")
 311                 conf->LogLevel = VERBOSE;
 312         else if (dbg == "default")
 313                 conf->LogLevel = DEFAULT;
 314         else if (dbg == "sparse")
 315                 conf->LogLevel = SPARSE;
 316         else if (dbg == "none")
 317                 conf->LogLevel = NONE;
 318
 319         conf->debugging = (conf->LogLevel == DEBUG);
 320
 321         return true;
 322 }
 323
 324 bool ValidateMotd(ServerConfig* conf, const char* tag, const char* value, ValueItem &data)
 325 {
 326         conf->ReadFile(conf->MOTD, data.GetString());
 327         return true;
 328 }
 329
 330 bool ValidateNotEmpty(ServerConfig* conf, const char* tag, const char* value, ValueItem &data)
 331 {
 332         if (!*data.GetString())
 333                 throw CoreException(std::string("The value for ")+tag+" cannot be empty!");
 334         return true;
 335 }
 336
 337 bool ValidateRules(ServerConfig* conf, const char* tag, const char* value, ValueItem &data)
 338 {
 339         conf->ReadFile(conf->RULES, data.GetString());
 340         return true;
 341 }
 342
 343 bool ValidateModeLists(ServerConfig* conf, const char* tag, const char* value, ValueItem &data)
 344 {
 345         memset(conf->HideModeLists, 0, 256);
 346         for (const unsigned char* x = (const unsigned char*)data.GetString(); *x; ++x)
 347                 conf->HideModeLists[*x] = true;
 348         return true;
 349 }
 350
 351 bool ValidateExemptChanOps(ServerConfig* conf, const char* tag, const char* value, ValueItem &data)
 352 {
 353         memset(conf->ExemptChanOps, 0, 256);
 354         for (const unsigned char* x = (const unsigned char*)data.GetString(); *x; ++x)
 355                 conf->ExemptChanOps[*x] = true;
 356         return true;
 357 }
 358
 359 bool ValidateWhoWas(ServerConfig* conf, const char* tag, const char* value, ValueItem &data)
 360 {
 361         conf->WhoWasMaxKeep = conf->GetInstance()->Duration(data.GetString());
 362
 363         if (conf->WhoWasGroupSize < 0)
 364                 conf->WhoWasGroupSize = 0;
 365
 366         if (conf->WhoWasMaxGroups < 0)
 367                 conf->WhoWasMaxGroups = 0;
 368
 369         if (conf->WhoWasMaxKeep < 3600)
 370         {
 371                 conf->WhoWasMaxKeep = 3600;
 372                 conf->GetInstance()->Log(DEFAULT,"WARNING: <whowas:maxkeep> value less than 3600, setting to default 3600");
 373         }
 374
 375         command_t* whowas_command = conf->GetInstance()->Parser->GetHandler("WHOWAS");
 376         if (whowas_command)
 377         {
 378                 std::deque<classbase*> params;
 379                 whowas_command->HandleInternal(WHOWAS_PRUNE, params);
 380         }
 381
 382         return true;
 383 }
 384
 385 /* Callback called before processing the first <connect> tag
 386  */
 387 bool InitConnect(ServerConfig* conf, const char* tag)
 388 {
 389         conf->GetInstance()->Log(DEFAULT,"Reading connect classes...");
 390         conf->Classes.clear();
 391         return true;
 392 }
 393
 394 /* Callback called to process a single <connect> tag
 395  */
 396 bool DoConnect(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
 397 {
 398         ConnectClass c;
 399         const char* allow = values[0].GetString(); /* Yeah, there are a lot of values. Live with it. */
 400         const char* deny = values[1].GetString();
 401         const char* password = values[2].GetString();
 402         int timeout = values[3].GetInteger();
 403         int pingfreq = values[4].GetInteger();
 404         int flood = values[5].GetInteger();
 405         int threshold = values[6].GetInteger();
 406         int sendq = values[7].GetInteger();
 407         int recvq = values[8].GetInteger();
 408         int localmax = values[9].GetInteger();
 409         int globalmax = values[10].GetInteger();
 410
 411         if (*allow)
 412         {
 413                 ConnectClass c(timeout, flood, allow, pingfreq, password, threshold, sendq, recvq, localmax, globalmax);
 414                 conf->Classes.push_back(c);
 415         }
 416         else
 417         {
 418                 ConnectClass c(deny);
 419                 conf->Classes.push_back(c);
 420         }
 421
 422         return true;
 423 }
 424
 425 /* Callback called when there are no more <connect> tags
 426  */
 427 bool DoneConnect(ServerConfig* conf, const char* tag)
 428 {
 429         return true;
 430 }
 431
 432 /* Callback called before processing the first <uline> tag
 433  */
 434 bool InitULine(ServerConfig* conf, const char* tag)
 435 {
 436         conf->ulines.clear();
 437         return true;
 438 }
 439
 440 /* Callback called to process a single <uline> tag
 441  */
 442 bool DoULine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
 443 {
 444         const char* server = values[0].GetString();
 445         const bool silent = values[1].GetBool();
 446         conf->ulines[server] = silent;
 447         return true;
 448 }
 449
 450 /* Callback called when there are no more <uline> tags
 451  */
 452 bool DoneULine(ServerConfig* conf, const char* tag)
 453 {
 454         return true;
 455 }
 456
 457 /* Callback called before processing the first <module> tag
 458  */
 459 bool InitModule(ServerConfig* conf, const char* tag)
 460 {
 461         old_module_names.clear();
 462         new_module_names.clear();
 463         added_modules.clear();
 464         removed_modules.clear();
 465         for (std::vector<std::string>::iterator t = conf->module_names.begin(); t != conf->module_names.end(); t++)
 466         {
 467                 old_module_names.push_back(*t);
 468         }
 469         return true;
 470 }
 471
 472 /* Callback called to process a single <module> tag
 473  */
 474 bool DoModule(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
 475 {
 476         const char* modname = values[0].GetString();
 477         new_module_names.push_back(modname);
 478         return true;
 479 }
 480
 481 /* Callback called when there are no more <module> tags
 482  */
 483 bool DoneModule(ServerConfig* conf, const char* tag)
 484 {
 485         // now create a list of new modules that are due to be loaded
 486         // and a seperate list of modules which are due to be unloaded
 487         for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
 488         {
 489                 bool added = true;
 490
 491                 for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
 492                 {
 493                         if (*old == *_new)
 494                                 added = false;
 495                 }
 496
 497                 if (added)
 498                         added_modules.push_back(*_new);
 499         }
 500
 501         for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
 502         {
 503                 bool removed = true;
 504                 for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
 505                 {
 506                         if (*newm == *oldm)
 507                                 removed = false;
 508                 }
 509
 510                 if (removed)
 511                         removed_modules.push_back(*oldm);
 512         }
 513         return true;
 514 }
 515
 516 /* Callback called before processing the first <banlist> tag
 517  */
 518 bool InitMaxBans(ServerConfig* conf, const char* tag)
 519 {
 520         conf->maxbans.clear();
 521         return true;
 522 }
 523
 524 /* Callback called to process a single <banlist> tag
 525  */
 526 bool DoMaxBans(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
 527 {
 528         const char* channel = values[0].GetString();
 529         int limit = values[1].GetInteger();
 530         conf->maxbans[channel] = limit;
 531         return true;
 532 }
 533
 534 /* Callback called when there are no more <banlist> tags.
 535  */
 536 bool DoneMaxBans(ServerConfig* conf, const char* tag)
 537 {
 538         return true;
 539 }
 540
 541 void ServerConfig::ReportConfigError(const std::string &errormessage, bool bail, userrec* user)
 542 {
 543         ServerInstance->Log(DEFAULT, "There were errors in your configuration file: %s", errormessage.c_str());
 544         if (bail)
 545         {
 546                 /* Unneeded because of the ServerInstance->Log() aboive? */
 547                 printf("There were errors in your configuration:\n%s\n\n",errormessage.c_str());
 548                 InspIRCd::Exit(EXIT_STATUS_CONFIG);
 549         }
 550         else
 551         {
 552                 std::string errors = errormessage;
 553                 std::string::size_type start;
 554                 unsigned int prefixlen;
 555                 start = 0;
 556                 /* ":ServerInstance->Config->ServerName NOTICE user->nick :" */
 557                 if (user)
 558                 {
 559                         prefixlen = strlen(this->ServerName) + strlen(user->nick) + 11;
 560                         user->WriteServ("NOTICE %s :There were errors in the configuration file:",user->nick);
 561                         while (start < errors.length())
 562                         {
 563                                 user->WriteServ("NOTICE %s :%s",user->nick, errors.substr(start, 510 - prefixlen).c_str());
 564                                 start += 510 - prefixlen;
 565                         }
 566                 }
 567                 else
 568                 {
 569                         ServerInstance->WriteOpers("There were errors in the configuration file:");
 570                         while (start < errors.length())
 571                         {
 572                                 ServerInstance->WriteOpers(errors.substr(start, 360).c_str());
 573                                 start += 360;
 574                         }
 575                 }
 576                 return;
 577         }
 578 }
 579
 580 void ServerConfig::Read(bool bail, userrec* user)
 581 {
 582         static char debug[MAXBUF];      /* Temporary buffer for debugging value */
 583         static char maxkeep[MAXBUF];    /* Temporary buffer for WhoWasMaxKeep value */
 584         static char hidemodes[MAXBUF];  /* Modes to not allow listing from users below halfop */
 585         static char exemptchanops[MAXBUF];      /* Exempt channel ops from these modes */
 586         int rem = 0, add = 0;           /* Number of modules added, number of modules removed */
 587         std::ostringstream errstr;      /* String stream containing the error output */
 588
 589         /* These tags MUST occur and must ONLY occur once in the config file */
 590         static char* Once[] = { "server", "admin", "files", "power", "options", NULL };
 591
 592         /* These tags can occur ONCE or not at all */
 593         InitialConfig Values[] = {
 594                 {"options",     "softlimit",    MAXCLIENTS_S,           new ValueContainerUInt (&this->SoftLimit),              DT_INTEGER, ValidateSoftLimit},
 595                 {"options",     "somaxconn",    SOMAXCONN_S,            new ValueContainerInt  (&this->MaxConn),                DT_INTEGER, ValidateMaxConn},
 596                 {"server",      "name",         "",                     new ValueContainerChar (this->ServerName),              DT_CHARPTR, ValidateServerName},
 597                 {"server",      "description",  "Configure Me",         new ValueContainerChar (this->ServerDesc),              DT_CHARPTR, NoValidation},
 598                 {"server",      "network",      "Network",              new ValueContainerChar (this->Network),                 DT_CHARPTR, NoValidation},
 599                 {"admin",       "name",         "",                     new ValueContainerChar (this->AdminName),               DT_CHARPTR, NoValidation},
 600                 {"admin",       "email",        "Mis@configu.red",      new ValueContainerChar (this->AdminEmail),              DT_CHARPTR, NoValidation},
 601                 {"admin",       "nick",         "Misconfigured",        new ValueContainerChar (this->AdminNick),               DT_CHARPTR, NoValidation},
 602                 {"files",       "motd",         "",                     new ValueContainerChar (this->motd),                    DT_CHARPTR, ValidateMotd},
 603                 {"files",       "rules",        "",                     new ValueContainerChar (this->rules),                   DT_CHARPTR, ValidateRules},
 604                 {"power",       "diepass",      "",                     new ValueContainerChar (this->diepass),                 DT_CHARPTR, ValidateNotEmpty},
 605                 {"power",       "pause",        "",                     new ValueContainerInt  (&this->DieDelay),               DT_INTEGER, NoValidation},
 606                 {"power",       "restartpass",  "",                     new ValueContainerChar (this->restartpass),             DT_CHARPTR, ValidateNotEmpty},
 607                 {"options",     "prefixquit",   "",                     new ValueContainerChar (this->PrefixQuit),              DT_CHARPTR, NoValidation},
 608                 {"options",     "suffixquit",   "",                     new ValueContainerChar (this->SuffixQuit),              DT_CHARPTR, NoValidation},
 609                 {"options",     "fixedquit",    "",                     new ValueContainerChar (this->FixedQuit),               DT_CHARPTR, NoValidation},
 610                 {"options",     "loglevel",     "default",              new ValueContainerChar (debug),                         DT_CHARPTR, ValidateLogLevel},
 611                 {"options",     "netbuffersize","10240",                new ValueContainerInt  (&this->NetBufferSize),          DT_INTEGER, ValidateNetBufferSize},
 612                 {"options",     "maxwho",       "128",                  new ValueContainerInt  (&this->MaxWhoResults),          DT_INTEGER, ValidateMaxWho},
 613                 {"options",     "allowhalfop",  "0",                    new ValueContainerBool (&this->AllowHalfop),            DT_BOOLEAN, NoValidation},
 614                 {"dns",         "server",       "",                     new ValueContainerChar (this->DNSServer),               DT_CHARPTR, ValidateDnsServer},
 615                 {"dns",         "timeout",      "5",                    new ValueContainerInt  (&this->dns_timeout),            DT_INTEGER, NoValidation},
 616                 {"options",     "moduledir",    MOD_PATH,               new ValueContainerChar (this->ModPath),                 DT_CHARPTR, NoValidation},
 617                 {"disabled",    "commands",     "",                     new ValueContainerChar (this->DisabledCommands),        DT_CHARPTR, NoValidation},
 618                 {"options",     "userstats",    "",                     new ValueContainerChar (this->UserStats),               DT_CHARPTR, NoValidation},
 619                 {"options",     "customversion","",                     new ValueContainerChar (this->CustomVersion),           DT_CHARPTR, NoValidation},
 620                 {"options",     "hidesplits",   "0",                    new ValueContainerBool (&this->HideSplits),             DT_BOOLEAN, NoValidation},
 621                 {"options",     "hidebans",     "0",                    new ValueContainerBool (&this->HideBans),               DT_BOOLEAN, NoValidation},
 622                 {"options",     "hidewhois",    "",                     new ValueContainerChar (this->HideWhoisServer),         DT_CHARPTR, NoValidation},
 623                 {"options",     "hidekills",    "",                     new ValueContainerChar (this->HideKillsServer),         DT_CHARPTR, NoValidation},
 624                 {"options",     "operspywhois", "0",                    new ValueContainerBool (&this->OperSpyWhois),           DT_BOOLEAN, NoValidation},
 625                 {"options",     "nouserdns",    "0",                    new ValueContainerBool (&this->NoUserDns),              DT_BOOLEAN, NoValidation},
 626                 {"options",     "syntaxhints",  "0",                    new ValueContainerBool (&this->SyntaxHints),            DT_BOOLEAN, NoValidation},
 627                 {"options",     "cyclehosts",   "0",                    new ValueContainerBool (&this->CycleHosts),             DT_BOOLEAN, NoValidation},
 628                 {"options",     "ircumsgprefix","0",                    new ValueContainerBool (&this->UndernetMsgPrefix),      DT_BOOLEAN, NoValidation},
 629                 {"options",     "announceinvites", "1",                 new ValueContainerBool (&this->AnnounceInvites),        DT_BOOLEAN, NoValidation},
 630                 {"options",     "hostintopic",  "1",                    new ValueContainerBool (&this->FullHostInTopic),        DT_BOOLEAN, NoValidation},
 631                 {"options",     "hidemodes",    "",                     new ValueContainerChar (hidemodes),                     DT_CHARPTR, ValidateModeLists},
 632                 {"options",     "exemptchanops","",                     new ValueContainerChar (exemptchanops),                 DT_CHARPTR, ValidateExemptChanOps},
 633                 {"options",     "defaultmodes", "",                     new ValueContainerChar (this->DefaultModes),            DT_CHARPTR, NoValidation},
 634                 {"pid",         "file",         "",                     new ValueContainerChar (this->PID),                     DT_CHARPTR, NoValidation},
 635                 {"whowas",      "groupsize",    "10",                   new ValueContainerInt  (&this->WhoWasGroupSize),        DT_INTEGER, NoValidation},
 636                 {"whowas",      "maxgroups",    "10240",                new ValueContainerInt  (&this->WhoWasMaxGroups),        DT_INTEGER, NoValidation},
 637                 {"whowas",      "maxkeep",      "3600",                 new ValueContainerChar (maxkeep),                       DT_CHARPTR, ValidateWhoWas},
 638                 {"die",         "value",        "",                     new ValueContainerChar (this->DieValue),                DT_CHARPTR, NoValidation},
 639                 {"channels",    "users",        "20",                   new ValueContainerUInt (&this->MaxChans),               DT_INTEGER, NoValidation},
 640                 {"channels",    "opers",        "60",                   new ValueContainerUInt (&this->OperMaxChans),           DT_INTEGER, NoValidation},
 641                 {NULL}
 642         };
 643
 644         /* These tags can occur multiple times, and therefore they have special code to read them
 645          * which is different to the code for reading the singular tags listed above.
 646          */
 647         MultiConfig MultiValues[] = {
 648
 649                 {"connect",
 650                                 {"allow",       "deny",         "password",     "timeout",      "pingfreq",     "flood",
 651                                 "threshold",    "sendq",        "recvq",        "localmax",     "globalmax",    "port",
 652                                 NULL},
 653                                 {"",            "",             "",             "",             "120",          "",
 654                                  "",            "",             "",             "3",            "3",            "0",
 655                                  NULL},
 656                                 {DT_CHARPTR,    DT_CHARPTR,     DT_CHARPTR,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,
 657                                  DT_INTEGER,    DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER},
 658                                 InitConnect, DoConnect, DoneConnect},
 659
 660                 {"uline",
 661                                 {"server",      "silent",       NULL},
 662                                 {"",            "0",            NULL},
 663                                 {DT_CHARPTR,    DT_BOOLEAN},
 664                                 InitULine,DoULine,DoneULine},
 665
 666                 {"banlist",
 667                                 {"chan",        "limit",        NULL},
 668                                 {"",            "",             NULL},
 669                                 {DT_CHARPTR,    DT_INTEGER},
 670                                 InitMaxBans, DoMaxBans, DoneMaxBans},
 671
 672                 {"module",
 673                                 {"name",        NULL},
 674                                 {"",            NULL},
 675                                 {DT_CHARPTR},
 676                                 InitModule, DoModule, DoneModule},
 677
 678                 {"badip",
 679                                 {"reason",      "ipmask",       NULL},
 680                                 {"No reason",   "",             NULL},
 681                                 {DT_CHARPTR,    DT_CHARPTR},
 682                                 InitXLine, DoZLine, DoneZLine},
 683
 684                 {"badnick",
 685                                 {"reason",      "nick",         NULL},
 686                                 {"No reason",   "",             NULL},
 687                                 {DT_CHARPTR,    DT_CHARPTR},
 688                                 InitXLine, DoQLine, DoneQLine},
 689
 690                 {"badhost",
 691                                 {"reason",      "host",         NULL},
 692                                 {"No reason",   "",             NULL},
 693                                 {DT_CHARPTR,    DT_CHARPTR},
 694                                 InitXLine, DoKLine, DoneKLine},
 695
 696                 {"exception",
 697                                 {"reason",      "host",         NULL},
 698                                 {"No reason",   "",             NULL},
 699                                 {DT_CHARPTR,    DT_CHARPTR},
 700                                 InitXLine, DoELine, DoneELine},
 701
 702                 {"type",
 703                                 {"name",        "classes",      NULL},
 704                                 {"",            "",             NULL},
 705                                 {DT_CHARPTR,    DT_CHARPTR},
 706                                 InitTypes, DoType, DoneClassesAndTypes},
 707
 708                 {"class",
 709                                 {"name",        "commands",     NULL},
 710                                 {"",            "",             NULL},
 711                                 {DT_CHARPTR,    DT_CHARPTR},
 712                                 InitClasses, DoClass, DoneClassesAndTypes},
 713
 714                 {NULL}
 715         };
 716
 717         include_stack.clear();
 718
 719         /* Load and parse the config file, if there are any errors then explode */
 720
 721         /* Make a copy here so if it fails then we can carry on running with an unaffected config */
 722         ConfigDataHash newconfig;
 723
 724         if (this->LoadConf(newconfig, ServerInstance->ConfigFileName, errstr))
 725         {
 726                 /* If we succeeded, set the ircd config to the new one */
 727                 this->config_data = newconfig;
 728         }
 729         else
 730         {
 731                 ReportConfigError(errstr.str(), bail, user);
 732                 return;
 733         }
 734
 735         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 736         try
 737         {
 738                 /* Check we dont have more than one of singular tags, or any of them missing
 739                  */
 740                 for (int Index = 0; Once[Index]; Index++)
 741                         if (!CheckOnce(Once[Index], bail, user))
 742                                 return;
 743
 744                 /* Read the values of all the tags which occur once or not at all, and call their callbacks.
 745                  */
 746                 for (int Index = 0; Values[Index].tag; Index++)
 747                 {
 748                         char item[MAXBUF];
 749                         int dt = Values[Index].datatype;
 750                         bool allow_newlines =  ((dt & DT_ALLOW_NEWLINE) > 0);
 751                         dt &= ~DT_ALLOW_NEWLINE;
 752
 753                         ConfValue(this->config_data, Values[Index].tag, Values[Index].value, Values[Index].default_value, 0, item, MAXBUF, allow_newlines);
 754                         ValueItem vi(item);
 755
 756                         if (!Values[Index].validation_function(this, Values[Index].tag, Values[Index].value, vi))
 757                                 throw CoreException("One or more values in your configuration file failed to validate. Please see your ircd.log for more information.");
 758
 759                         switch (Values[Index].datatype)
 760                         {
 761                                 case DT_CHARPTR:
 762                                 {
 763                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 764                                         /* Make sure we also copy the null terminator */
 765                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 766                                 }
 767                                 break;
 768                                 case DT_INTEGER:
 769                                 {
 770                                         int val = vi.GetInteger();
 771                                         ValueContainerInt* vci = (ValueContainerInt*)Values[Index].val;
 772                                         vci->Set(&val, sizeof(int));
 773                                 }
 774                                 break;
 775                                 case DT_BOOLEAN:
 776                                 {
 777                                         bool val = vi.GetBool();
 778                                         ValueContainerBool* vcb = (ValueContainerBool*)Values[Index].val;
 779                                         vcb->Set(&val, sizeof(bool));
 780                                 }
 781                                 break;
 782                                 default:
 783                                         /* You don't want to know what happens if someones bad code sends us here. */
 784                                 break;
 785                         }
 786
 787                         /* We're done with this now */
 788                         delete Values[Index].val;
 789                 }
 790
 791                 /* Read the multiple-tag items (class tags, connect tags, etc)
 792                  * and call the callbacks associated with them. We have three
 793                  * callbacks for these, a 'start', 'item' and 'end' callback.
 794                  */
 795                 for (int Index = 0; MultiValues[Index].tag; Index++)
 796                 {
 797                         MultiValues[Index].init_function(this, MultiValues[Index].tag);
 798
 799                         int number_of_tags = ConfValueEnum(this->config_data, MultiValues[Index].tag);
 800
 801                         for (int tagnum = 0; tagnum < number_of_tags; tagnum++)
 802                         {
 803                                 ValueList vl;
 804                                 for (int valuenum = 0; MultiValues[Index].items[valuenum]; valuenum++)
 805                                 {
 806                                         int dt = MultiValues[Index].datatype[valuenum];
 807                                         bool allow_newlines =  ((dt & DT_ALLOW_NEWLINE) > 0);
 808                                         dt &= ~DT_ALLOW_NEWLINE;
 809
 810                                         switch (dt)
 811                                         {
 812                                                 case DT_CHARPTR:
 813                                                 {
 814                                                         char item[MAXBUF];
 815                                                         if (ConfValue(this->config_data, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
 816                                                                 vl.push_back(ValueItem(item));
 817                                                         else
 818                                                                 vl.push_back(ValueItem(""));
 819                                                 }
 820                                                 break;
 821                                                 case DT_INTEGER:
 822                                                 {
 823                                                         int item = 0;
 824                                                         if (ConfValueInteger(this->config_data, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item))
 825                                                                 vl.push_back(ValueItem(item));
 826                                                         else
 827                                                                 vl.push_back(ValueItem(0));
 828                                                 }
 829                                                 break;
 830                                                 case DT_BOOLEAN:
 831                                                 {
 832                                                         bool item = ConfValueBool(this->config_data, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum);
 833                                                         vl.push_back(ValueItem(item));
 834                                                 }
 835                                                 break;
 836                                                 default:
 837                                                         /* Someone was smoking craq if we got here, and we're all gonna die. */
 838                                                 break;
 839                                         }
 840                                 }
 841
 842                                 MultiValues[Index].validation_function(this, MultiValues[Index].tag, (char**)MultiValues[Index].items, vl, MultiValues[Index].datatype);
 843                         }
 844
 845                         MultiValues[Index].finish_function(this, MultiValues[Index].tag);
 846                 }
 847
 848         }
 849
 850         catch (CoreException &ce)
 851         {
 852                 ReportConfigError(ce.GetReason(), bail, user);
 853                 return;
 854         }
 855
 856         // write once here, to try it out and make sure its ok
 857         ServerInstance->WritePID(this->PID);
 858
 859         ServerInstance->Log(DEFAULT,"Done reading configuration file.");
 860
 861         /* If we're rehashing, let's load any new modules, and unload old ones
 862          */
 863         if (!bail)
 864         {
 865                 int found_ports = 0;
 866                 FailedPortList pl;
 867                 ServerInstance->BindPorts(false, found_ports, pl);
 868
 869                 if (pl.size())
 870                 {
 871                         user->WriteServ("NOTICE %s :*** Not all your client ports could be bound.", user->nick);
 872                         user->WriteServ("NOTICE %s :*** The following port(s) failed to bind:", user->nick);
 873                         int j = 1;
 874                         for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 875                         {
 876                                 user->WriteServ("NOTICE %s :*** %d.   IP: %s     Port: %lu", user->nick, j, i->first.empty() ? "<all>" : i->first.c_str(), (unsigned long)i->second);
 877                         }
 878                 }
 879
 880                 if (!removed_modules.empty())
 881                 {
 882                         for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
 883                         {
 884                                 if (ServerInstance->UnloadModule(removing->c_str()))
 885                                 {
 886                                         ServerInstance->WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
 887
 888                                         if (user)
 889                                                 user->WriteServ("973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
 890
 891                                         rem++;
 892                                 }
 893                                 else
 894                                 {
 895                                         if (user)
 896                                                 user->WriteServ("972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ServerInstance->ModuleError());
 897                                 }
 898                         }
 899                 }
 900
 901                 if (!added_modules.empty())
 902                 {
 903                         for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 904                         {
 905                                 if (ServerInstance->LoadModule(adding->c_str()))
 906                                 {
 907                                         ServerInstance->WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
 908
 909                                         if (user)
 910                                                 user->WriteServ("975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
 911
 912                                         add++;
 913                                 }
 914                                 else
 915                                 {
 916                                         if (user)
 917                                                 user->WriteServ("974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ServerInstance->ModuleError());
 918                                 }
 919                         }
 920                 }
 921
 922                 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());
 923         }
 924
 925         if (user)
 926                 user->WriteServ("NOTICE %s :*** Successfully rehashed server.", user->nick);
 927         else
 928                 ServerInstance->WriteOpers("*** Successfully rehashed server.");
 929 }
 930
 931 bool ServerConfig::LoadConf(ConfigDataHash &target, const char* filename, std::ostringstream &errorstream)
 932 {
 933         std::ifstream conf(filename);
 934         std::string line;
 935         char ch;
 936         long linenumber;
 937         bool in_tag;
 938         bool in_quote;
 939         bool in_comment;
 940
 941         linenumber = 1;
 942         in_tag = false;
 943         in_quote = false;
 944         in_comment = false;
 945
 946         /* Check if the file open failed first */
 947         if (!conf)
 948         {
 949                 errorstream << "LoadConf: Couldn't open config file: " << filename << std::endl;
 950                 return false;
 951         }
 952
 953         /* Fix the chmod of the file to restrict it to the current user and group */
 954         chmod(filename,0600);
 955
 956         for (unsigned int t = 0; t < include_stack.size(); t++)
 957         {
 958                 if (std::string(filename) == include_stack[t])
 959                 {
 960                         errorstream << "File " << filename << " is included recursively (looped inclusion)." << std::endl;
 961                         return false;
 962                 }
 963         }
 964
 965         /* It's not already included, add it to the list of files we've loaded */
 966         include_stack.push_back(filename);
 967
 968         /* Start reading characters... */
 969         while(conf.get(ch))
 970         {
 971                 /*
 972                  * Here we try and get individual tags on separate lines,
 973                  * this would be so easy if we just made people format
 974                  * their config files like that, but they don't so...
 975                  * We check for a '<' and then know the line is over when
 976                  * we get a '>' not inside quotes. If we find two '<' and
 977                  * no '>' then die with an error.
 978                  */
 979
 980                 if((ch == '#') && !in_quote)
 981                         in_comment = true;
 982
 983                 /*if(((ch == '\n') || (ch == '\r')) && in_quote)
 984                 {
 985                         errorstream << "Got a newline within a quoted section, this is probably a typo: " << filename << ":" << linenumber << std::endl;
 986                         return false;
 987                 }*/
 988
 989                 switch(ch)
 990                 {
 991                         case '\n':
 992                                 if (in_quote)
 993                                         line += '\n';
 994                                 linenumber++;
 995                         case '\r':
 996                                 if (!in_quote)
 997                                         in_comment = false;
 998                         case '\0':
 999                                 continue;
1000                         case '\t':
1001                                 ch = ' ';
1002                 }
1003
1004                 if(in_comment)
1005                         continue;
1006
1007                 /* XXX: Added by Brain, May 1st 2006 - Escaping of characters.
1008                  * Note that this WILL NOT usually allow insertion of newlines,
1009                  * because a newline is two characters long. Use it primarily to
1010                  * insert the " symbol.
1011                  *
1012                  * Note that this also involves a further check when parsing the line,
1013                  * which can be found below.
1014                  */
1015                 if ((ch == '\\') && (in_quote) && (in_tag))
1016                 {
1017                         line += ch;
1018                         char real_character;
1019                         if (conf.get(real_character))
1020                         {
1021                                 if (real_character == 'n')
1022                                         real_character = '\n';
1023                                 line += real_character;
1024                                 continue;
1025                         }
1026                         else
1027                         {
1028                                 errorstream << "End of file after a \\, what did you want to escape?: " << filename << ":" << linenumber << std::endl;
1029                                 return false;
1030                         }
1031                 }
1032
1033                 if (ch != '\r')
1034                         line += ch;
1035
1036                 if(ch == '<')
1037                 {
1038                         if(in_tag)
1039                         {
1040                                 if(!in_quote)
1041                                 {
1042                                         errorstream << "Got another opening < when the first one wasn't closed: " << filename << ":" << linenumber << std::endl;
1043                                         return false;
1044                                 }
1045                         }
1046                         else
1047                         {
1048                                 if(in_quote)
1049                                 {
1050                                         errorstream << "We're in a quote but outside a tag, interesting. " << filename << ":" << linenumber << std::endl;
1051                                         return false;
1052                                 }
1053                                 else
1054                                 {
1055                                         // errorstream << "Opening new config tag on line " << linenumber << std::endl;
1056                                         in_tag = true;
1057                                 }
1058                         }
1059                 }
1060                 else if(ch == '"')
1061                 {
1062                         if(in_tag)
1063                         {
1064                                 if(in_quote)
1065                                 {
1066                                         // errorstream << "Closing quote in config tag on line " << linenumber << std::endl;
1067                                         in_quote = false;
1068                                 }
1069                                 else
1070                                 {
1071                                         // errorstream << "Opening quote in config tag on line " << linenumber << std::endl;
1072                                         in_quote = true;
1073                                 }
1074                         }
1075                         else
1076                         {
1077                                 if(in_quote)
1078                                 {
1079                                         errorstream << "Found a (closing) \" outside a tag: " << filename << ":" << linenumber << std::endl;
1080                                 }
1081                                 else
1082                                 {
1083                                         errorstream << "Found a (opening) \" outside a tag: " << filename << ":" << linenumber << std::endl;
1084                                 }
1085                         }
1086                 }
1087                 else if(ch == '>')
1088                 {
1089                         if(!in_quote)
1090                         {
1091                                 if(in_tag)
1092                                 {
1093                                         // errorstream << "Closing config tag on line " << linenumber << std::endl;
1094                                         in_tag = false;
1095
1096                                         /*
1097                                          * If this finds an <include> then ParseLine can simply call
1098                                          * LoadConf() and load the included config into the same ConfigDataHash
1099                                          */
1100
1101                                         if(!this->ParseLine(target, line, linenumber, errorstream))
1102                                                 return false;
1103
1104                                         line.clear();
1105                                 }
1106                                 else
1107                                 {
1108                                         errorstream << "Got a closing > when we weren't inside a tag: " << filename << ":" << linenumber << std::endl;
1109                                         return false;
1110                                 }
1111                         }
1112                 }
1113         }
1114
1115         return true;
1116 }
1117
1118 bool ServerConfig::LoadConf(ConfigDataHash &target, const std::string &filename, std::ostringstream &errorstream)
1119 {
1120         return this->LoadConf(target, filename.c_str(), errorstream);
1121 }
1122
1123 bool ServerConfig::ParseLine(ConfigDataHash &target, std::string &line, long linenumber, std::ostringstream &errorstream)
1124 {
1125         std::string tagname;
1126         std::string current_key;
1127         std::string current_value;
1128         KeyValList results;
1129         bool got_name;
1130         bool got_key;
1131         bool in_quote;
1132
1133         got_name = got_key = in_quote = false;
1134
1135         //std::cout << "ParseLine(data, '" << line << "', " << linenumber << ", stream)" << std::endl;
1136
1137         for(std::string::iterator c = line.begin(); c != line.end(); c++)
1138         {
1139                 if(!got_name)
1140                 {
1141                         /* We don't know the tag name yet. */
1142
1143                         if(*c != ' ')
1144                         {
1145                                 if(*c != '<')
1146                                 {
1147                                         tagname += *c;
1148                                 }
1149                         }
1150                         else
1151                         {
1152                                 /* We got to a space, we should have the tagname now. */
1153                                 if(tagname.length())
1154                                 {
1155                                         got_name = true;
1156                                 }
1157                         }
1158                 }
1159                 else
1160                 {
1161                         /* We have the tag name */
1162                         if (!got_key)
1163                         {
1164                                 /* We're still reading the key name */
1165                                 if (*c != '=')
1166                                 {
1167                                         if (*c != ' ')
1168                                         {
1169                                                 current_key += *c;
1170                                         }
1171                                 }
1172                                 else
1173                                 {
1174                                         /* We got an '=', end of the key name. */
1175                                         got_key = true;
1176                                 }
1177                         }
1178                         else
1179                         {
1180                                 /* We have the key name, now we're looking for quotes and the value */
1181
1182                                 /* Correctly handle escaped characters here.
1183                                  * See the XXX'ed section above.
1184                                  */
1185                                 if ((*c == '\\') && (in_quote))
1186                                 {
1187                                         c++;
1188                                         if (*c == 'n')
1189                                                 current_value += '\n';
1190                                         else
1191                                                 current_value += *c;
1192                                         continue;
1193                                 }
1194                                 else if ((*c == '\n') && (in_quote))
1195                                 {
1196                                         /* Got a 'real' \n, treat it as part of the value */
1197                                         current_value += '\n';
1198                                         continue;
1199                                 }
1200                                 else if ((*c == '\r') && (in_quote))
1201                                         /* Got a \r, drop it */
1202                                         continue;
1203
1204                                 if (*c == '"')
1205                                 {
1206                                         if (!in_quote)
1207                                         {
1208                                                 /* We're not already in a quote. */
1209                                                 in_quote = true;
1210                                         }
1211                                         else
1212                                         {
1213                                                 /* Leaving quotes, we have the value */
1214                                                 results.push_back(KeyVal(current_key, current_value));
1215
1216                                                 // std::cout << "<" << tagname << ":" << current_key << "> " << current_value << std::endl;
1217
1218                                                 in_quote = false;
1219                                                 got_key = false;
1220
1221                                                 if((tagname == "include") && (current_key == "file"))
1222                                                 {
1223                                                         if(!this->DoInclude(target, current_value, errorstream))
1224                                                                 return false;
1225                                                 }
1226
1227                                                 current_key.clear();
1228                                                 current_value.clear();
1229                                         }
1230                                 }
1231                                 else
1232                                 {
1233                                         if(in_quote)
1234                                         {
1235                                                 current_value += *c;
1236                                         }
1237                                 }
1238                         }
1239                 }
1240         }
1241
1242         /* Finished parsing the tag, add it to the config hash */
1243         target.insert(std::pair<std::string, KeyValList > (tagname, results));
1244
1245         return true;
1246 }
1247
1248 bool ServerConfig::DoInclude(ConfigDataHash &target, const std::string &file, std::ostringstream &errorstream)
1249 {
1250         std::string confpath;
1251         std::string newfile;
1252         std::string::size_type pos;
1253
1254         confpath = ServerInstance->ConfigFileName;
1255         newfile = file;
1256
1257         for (std::string::iterator c = newfile.begin(); c != newfile.end(); c++)
1258         {
1259                 if (*c == '\\')
1260                 {
1261                         *c = '/';
1262                 }
1263         }
1264
1265         if (file[0] != '/')
1266         {
1267                 if((pos = confpath.rfind("/")) != std::string::npos)
1268                 {
1269                         /* Leaves us with just the path */
1270                         newfile = confpath.substr(0, pos) + std::string("/") + newfile;
1271                 }
1272                 else
1273                 {
1274                         errorstream << "Couldn't get config path from: " << confpath << std::endl;
1275                         return false;
1276                 }
1277         }
1278
1279         return LoadConf(target, newfile, errorstream);
1280 }
1281
1282 bool ServerConfig::ConfValue(ConfigDataHash &target, const char* tag, const char* var, int index, char* result, int length, bool allow_linefeeds)
1283 {
1284         return ConfValue(target, tag, var, "", index, result, length, allow_linefeeds);
1285 }
1286
1287 bool ServerConfig::ConfValue(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, char* result, int length, bool allow_linefeeds)
1288 {
1289         std::string value;
1290         bool r = ConfValue(target, std::string(tag), std::string(var), std::string(default_value), index, value, allow_linefeeds);
1291         strlcpy(result, value.c_str(), length);
1292         return r;
1293 }
1294
1295 bool ServerConfig::ConfValue(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, std::string &result, bool allow_linefeeds)
1296 {
1297         return ConfValue(target, tag, var, "", index, result, allow_linefeeds);
1298 }
1299
1300 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)
1301 {
1302         ConfigDataHash::size_type pos = index;
1303         if((pos >= 0) && (pos < target.count(tag)))
1304         {
1305                 ConfigDataHash::iterator iter = target.find(tag);
1306
1307                 for(int i = 0; i < index; i++)
1308                         iter++;
1309
1310                 for(KeyValList::iterator j = iter->second.begin(); j != iter->second.end(); j++)
1311                 {
1312                         if(j->first == var)
1313                         {
1314                                 if ((!allow_linefeeds) && (j->second.find('\n') != std::string::npos))
1315                                 {
1316                                         ServerInstance->Log(DEFAULT, "Value of <" + tag + ":" + var+ "> contains a linefeed, and linefeeds in this value are not permitted -- stripped to spaces.");
1317                                         for (std::string::iterator n = j->second.begin(); n != j->second.end(); n++)
1318                                                 if (*n == '\n')
1319                                                         *n = ' ';
1320                                 }
1321                                 else
1322                                 {
1323                                         result = j->second;
1324                                         return true;
1325                                 }
1326                         }
1327                 }
1328                 if (!default_value.empty())
1329                 {
1330                         result = default_value;
1331                         return true;
1332                 }
1333         }
1334         else if(pos == 0)
1335         {
1336                 if (!default_value.empty())
1337                 {
1338                         result = default_value;
1339                         return true;
1340                 }
1341         }
1342         return false;
1343 }
1344
1345 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, int index, int &result)
1346 {
1347         return ConfValueInteger(target, std::string(tag), std::string(var), "", index, result);
1348 }
1349
1350 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, int &result)
1351 {
1352         return ConfValueInteger(target, std::string(tag), std::string(var), std::string(default_value), index, result);
1353 }
1354
1355 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, int &result)
1356 {
1357         return ConfValueInteger(target, tag, var, "", index, result);
1358 }
1359
1360 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index, int &result)
1361 {
1362         std::string value;
1363         std::istringstream stream;
1364         bool r = ConfValue(target, tag, var, default_value, index, value);
1365         stream.str(value);
1366         if(!(stream >> result))
1367                 return false;
1368         else
1369         {
1370                 if (!value.empty())
1371                 {
1372                         if (value.substr(0,2) == "0x")
1373                         {
1374                                 char* endptr;
1375
1376                                 value.erase(0,2);
1377                                 result = strtol(value.c_str(), &endptr, 16);
1378
1379                                 /* No digits found */
1380                                 if (endptr == value.c_str())
1381                                         return false;
1382                         }
1383                         else
1384                         {
1385                                 char denominator = *(value.end() - 1);
1386                                 switch (toupper(denominator))
1387                                 {
1388                                         case 'K':
1389                                                 /* Kilobytes -> bytes */
1390                                                 result = result * 1024;
1391                                         break;
1392                                         case 'M':
1393                                                 /* Megabytes -> bytes */
1394                                                 result = result * 1024 * 1024;
1395                                         break;
1396                                         case 'G':
1397                                                 /* Gigabytes -> bytes */
1398                                                 result = result * 1024 * 1024 * 1024;
1399                                         break;
1400                                 }
1401                         }
1402                 }
1403         }
1404         return r;
1405 }
1406
1407
1408 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, int index)
1409 {
1410         return ConfValueBool(target, std::string(tag), std::string(var), "", index);
1411 }
1412
1413 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index)
1414 {
1415         return ConfValueBool(target, std::string(tag), std::string(var), std::string(default_value), index);
1416 }
1417
1418 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, int index)
1419 {
1420         return ConfValueBool(target, tag, var, "", index);
1421 }
1422
1423 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index)
1424 {
1425         std::string result;
1426         if(!ConfValue(target, tag, var, default_value, index, result))
1427                 return false;
1428
1429         return ((result == "yes") || (result == "true") || (result == "1"));
1430 }
1431
1432 int ServerConfig::ConfValueEnum(ConfigDataHash &target, const char* tag)
1433 {
1434         return target.count(tag);
1435 }
1436
1437 int ServerConfig::ConfValueEnum(ConfigDataHash &target, const std::string &tag)
1438 {
1439         return target.count(tag);
1440 }
1441
1442 int ServerConfig::ConfVarEnum(ConfigDataHash &target, const char* tag, int index)
1443 {
1444         return ConfVarEnum(target, std::string(tag), index);
1445 }
1446
1447 int ServerConfig::ConfVarEnum(ConfigDataHash &target, const std::string &tag, int index)
1448 {
1449         ConfigDataHash::size_type pos = index;
1450
1451         if((pos >= 0) && (pos < target.count(tag)))
1452         {
1453                 ConfigDataHash::const_iterator iter = target.find(tag);
1454
1455                 for(int i = 0; i < index; i++)
1456                         iter++;
1457
1458                 return iter->second.size();
1459         }
1460
1461         return 0;
1462 }
1463
1464 /** Read the contents of a file located by `fname' into a file_cache pointed at by `F'.
1465  */
1466 bool ServerConfig::ReadFile(file_cache &F, const char* fname)
1467 {
1468         if (!fname || !*fname)
1469                 return false;
1470
1471         FILE* file = NULL;
1472         char linebuf[MAXBUF];
1473
1474         F.clear();
1475
1476         if (*fname != '/')
1477         {
1478                 std::string::size_type pos;
1479                 std::string confpath = ServerInstance->ConfigFileName;
1480                 if((pos = confpath.rfind("/")) != std::string::npos)
1481                 {
1482                         /* Leaves us with just the path */
1483                         std::string newfile = confpath.substr(0, pos) + std::string("/") + fname;
1484                         if (!FileExists(newfile.c_str()))
1485                                 return false;
1486                         file =  fopen(newfile.c_str(), "r");
1487
1488                 }
1489         }
1490         else
1491         {
1492                 if (!FileExists(fname))
1493                         return false;
1494                 file =  fopen(fname, "r");
1495         }
1496
1497         if (file)
1498         {
1499                 while (!feof(file))
1500                 {
1501                         if (fgets(linebuf, sizeof(linebuf), file))
1502                                 linebuf[strlen(linebuf)-1] = 0;
1503                         else
1504                                 *linebuf = 0;
1505
1506                         if (!feof(file))
1507                         {
1508                                 F.push_back(*linebuf ? linebuf : " ");
1509                         }
1510                 }
1511
1512                 fclose(file);
1513         }
1514         else
1515                 return false;
1516
1517         return true;
1518 }
1519
1520 bool ServerConfig::FileExists(const char* file)
1521 {
1522         struct stat sb;
1523         if (stat(file, &sb) == -1)
1524                 return false;
1525
1526         if ((sb.st_mode & S_IFDIR) > 0)
1527                 return false;
1528
1529         FILE *input;
1530         if ((input = fopen (file, "r")) == NULL)
1531                 return false;
1532         else
1533         {
1534                 fclose(input);
1535                 return true;
1536         }
1537 }
1538
1539 char* ServerConfig::CleanFilename(char* name)
1540 {
1541         char* p = name + strlen(name);
1542         while ((p != name) && (*p != '/')) p--;
1543         return (p != name ? ++p : p);
1544 }
1545
1546
1547 bool ServerConfig::DirValid(const char* dirandfile)
1548 {
1549 #ifdef WINDOWS
1550         return true;
1551 #endif
1552
1553         char work[1024];
1554         char buffer[1024];
1555         char otherdir[1024];
1556         int p;
1557
1558         strlcpy(work, dirandfile, 1024);
1559         p = strlen(work);
1560
1561         // we just want the dir
1562         while (*work)
1563         {
1564                 if (work[p] == '/')
1565                 {
1566                         work[p] = '\0';
1567                         break;
1568                 }
1569
1570                 work[p--] = '\0';
1571         }
1572
1573         // Get the current working directory
1574         if (getcwd(buffer, 1024 ) == NULL )
1575                 return false;
1576
1577         if (chdir(work) == -1)
1578                 return false;
1579
1580         if (getcwd(otherdir, 1024 ) == NULL )
1581                 return false;
1582
1583         if (chdir(buffer) == -1)
1584                 return false;
1585
1586         size_t t = strlen(work);
1587
1588         if (strlen(otherdir) >= t)
1589         {
1590                 otherdir[t] = '\0';
1591                 if (!strcmp(otherdir,work))
1592                 {
1593                         return true;
1594                 }
1595
1596                 return false;
1597         }
1598         else
1599         {
1600                 return false;
1601         }
1602 }
1603
1604 std::string ServerConfig::GetFullProgDir()
1605 {
1606         char buffer[PATH_MAX+1];
1607
1608         // Get the current working directory
1609         if (getcwd(buffer, PATH_MAX))
1610         {
1611                 std::string remainder = this->argv[0];
1612
1613                 /* Does argv[0] start with /? its a full path, use it */
1614                 if (remainder[0] == '/')
1615                 {
1616                         std::string::size_type n = remainder.rfind("/inspircd");
1617                         return std::string(remainder, 0, n);
1618                 }
1619
1620                 std::string fullpath = std::string(buffer) + "/" + remainder;
1621                 std::string::size_type n = fullpath.rfind("/inspircd");
1622                 return std::string(fullpath, 0, n);
1623         }
1624
1625         return "/";
1626 }
1627
1628 InspIRCd* ServerConfig::GetInstance()
1629 {
1630         return ServerInstance;
1631 }
1632
1633
1634 ValueItem::ValueItem(int value)
1635 {
1636         std::stringstream n;
1637         n << value;
1638         v = n.str();
1639 }
1640
1641 ValueItem::ValueItem(bool value)
1642 {
1643         std::stringstream n;
1644         n << value;
1645         v = n.str();
1646 }
1647
1648 ValueItem::ValueItem(char* value)
1649 {
1650         v = value;
1651 }
1652
1653 void ValueItem::Set(char* value)
1654 {
1655         v = value;
1656 }
1657
1658 void ValueItem::Set(const char* value)
1659 {
1660         v = value;
1661 }
1662
1663 void ValueItem::Set(int value)
1664 {
1665         std::stringstream n;
1666         n << value;
1667         v = n.str();
1668 }
1669
1670 int ValueItem::GetInteger()
1671 {
1672         if (v.empty())
1673                 return 0;
1674         return atoi(v.c_str());
1675 }
1676
1677 char* ValueItem::GetString()
1678 {
1679         return (char*)v.c_str();
1680 }
1681
1682 bool ValueItem::GetBool()
1683 {
1684         return (GetInteger() || v == "yes" || v == "true");
1685 }
1686