src/configreader.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
   6  * See: http://wiki.inspircd.org/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *          the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 /* $Core */
  15 /* $CopyInstall: conf/inspircd.quotes.example $(CONPATH) */
  16 /* $CopyInstall: conf/inspircd.rules.example $(CONPATH) */
  17 /* $CopyInstall: conf/inspircd.motd.example $(CONPATH) */
  18 /* $CopyInstall: conf/inspircd.helpop-full.example $(CONPATH) */
  19 /* $CopyInstall: conf/inspircd.helpop.example $(CONPATH) */
  20 /* $CopyInstall: conf/inspircd.censor.example $(CONPATH) */
  21 /* $CopyInstall: conf/inspircd.filter.example $(CONPATH) */
  22 /* $CopyInstall: conf/inspircd.conf.example $(CONPATH) */
  23 /* $CopyInstall: conf/modules.conf.example $(CONPATH) */
  24 /* $CopyInstall: conf/opers.conf.example $(CONPATH) */
  25 /* $CopyInstall: conf/links.conf.example $(CONPATH) */
  26 /* $CopyInstall: .gdbargs $(BASE) */
  27
  28 #include "inspircd.h"
  29 #include <fstream>
  30 #include "xline.h"
  31 #include "exitcodes.h"
  32 #include "commands/cmd_whowas.h"
  33 #include "modes/cmode_h.h"
  34
  35 ServerConfig::ServerConfig()
  36 {
  37         WhoWasGroupSize = WhoWasMaxGroups = WhoWasMaxKeep = 0;
  38         log_file = NULL;
  39         NoUserDns = forcedebug = OperSpyWhois = nofork = HideBans = HideSplits = UndernetMsgPrefix = false;
  40         CycleHosts = writelog = AllowHalfop = InvBypassModes = true;
  41         dns_timeout = DieDelay = 5;
  42         MaxTargets = 20;
  43         NetBufferSize = 10240;
  44         SoftLimit = ServerInstance->SE->GetMaxFds();
  45         MaxConn = SOMAXCONN;
  46         MaxWhoResults = 0;
  47         debugging = 0;
  48         MaxChans = 20;
  49         OperMaxChans = 30;
  50         c_ipv4_range = 32;
  51         c_ipv6_range = 128;
  52 }
  53
  54 void ServerConfig::Update005()
  55 {
  56         std::stringstream out(data005);
  57         std::string token;
  58         std::string line5;
  59         int token_counter = 0;
  60         isupport.clear();
  61         while (out >> token)
  62         {
  63                 line5 = line5 + token + " ";
  64                 token_counter++;
  65                 if (token_counter >= 13)
  66                 {
  67                         char buf[MAXBUF];
  68                         snprintf(buf, MAXBUF, "%s:are supported by this server", line5.c_str());
  69                         isupport.push_back(buf);
  70                         line5.clear();
  71                         token_counter = 0;
  72                 }
  73         }
  74         if (!line5.empty())
  75         {
  76                 char buf[MAXBUF];
  77                 snprintf(buf, MAXBUF, "%s:are supported by this server", line5.c_str());
  78                 isupport.push_back(buf);
  79         }
  80 }
  81
  82 void ServerConfig::Send005(User* user)
  83 {
  84         for (std::vector<std::string>::iterator line = ServerInstance->Config->isupport.begin(); line != ServerInstance->Config->isupport.end(); line++)
  85                 user->WriteNumeric(RPL_ISUPPORT, "%s %s", user->nick.c_str(), line->c_str());
  86 }
  87
  88 bool ServerConfig::CheckOnce(const char* tag)
  89 {
  90         int count = ConfValueEnum(tag);
  91
  92         if (count > 1)
  93                 throw CoreException("You have more than one <"+std::string(tag)+"> tag, this is not permitted.");
  94         if (count < 1)
  95                 throw CoreException("You have not defined a <"+std::string(tag)+"> tag, this is required.");
  96         return true;
  97 }
  98
  99 static void ValidateNoSpaces(const char* p, const std::string &tag, const std::string &val)
 100 {
 101         for (const char* ptr = p; *ptr; ++ptr)
 102         {
 103                 if (*ptr == ' ')
 104                         throw CoreException("The value of <"+tag+":"+val+"> cannot contain spaces");
 105         }
 106 }
 107
 108 /* NOTE: Before anyone asks why we're not using inet_pton for this, it is because inet_pton and friends do not return so much detail,
 109  * even in strerror(errno). They just return 'yes' or 'no' to an address without such detail as to whats WRONG with the address.
 110  * Because ircd users arent as technical as they used to be (;)) we are going to give more of a useful error message.
 111  */
 112 static void ValidateIP(const char* p, const std::string &tag, const std::string &val, bool wild)
 113 {
 114         int num_dots = 0;
 115         int num_seps = 0;
 116         int not_numbers = false;
 117         int not_hex = false;
 118
 119         if (*p)
 120         {
 121                 if (*p == '.')
 122                         throw CoreException("The value of <"+tag+":"+val+"> is not an IP address");
 123
 124                 for (const char* ptr = p; *ptr; ++ptr)
 125                 {
 126                         if (wild && (*ptr == '*' || *ptr == '?' || *ptr == '/'))
 127                                 continue;
 128
 129                         if (*ptr != ':' && *ptr != '.')
 130                         {
 131                                 if (*ptr < '0' || *ptr > '9')
 132                                         not_numbers = true;
 133                                 if ((*ptr < '0' || *ptr > '9') && (toupper(*ptr) < 'A' || toupper(*ptr) > 'F'))
 134                                         not_hex = true;
 135                         }
 136                         switch (*ptr)
 137                         {
 138                                 case ' ':
 139                                         throw CoreException("The value of <"+tag+":"+val+"> is not an IP address");
 140                                 case '.':
 141                                         num_dots++;
 142                                 break;
 143                                 case ':':
 144                                         num_seps++;
 145                                 break;
 146                         }
 147                 }
 148
 149                 if (num_dots > 3)
 150                         throw CoreException("The value of <"+tag+":"+val+"> is an IPv4 address with too many fields!");
 151
 152                 if (num_seps > 8)
 153                         throw CoreException("The value of <"+tag+":"+val+"> is an IPv6 address with too many fields!");
 154
 155                 if (num_seps == 0 && num_dots < 3 && !wild)
 156                         throw CoreException("The value of <"+tag+":"+val+"> looks to be a malformed IPv4 address");
 157
 158                 if (num_seps == 0 && num_dots == 3 && not_numbers)
 159                         throw CoreException("The value of <"+tag+":"+val+"> contains non-numeric characters in an IPv4 address");
 160
 161                 if (num_seps != 0 && not_hex)
 162                         throw CoreException("The value of <"+tag+":"+val+"> contains non-hexdecimal characters in an IPv6 address");
 163
 164                 if (num_seps != 0 && num_dots != 3 && num_dots != 0 && !wild)
 165                         throw CoreException("The value of <"+tag+":"+val+"> is a malformed IPv6 4in6 address");
 166         }
 167 }
 168
 169 static void ValidateHostname(const char* p, const std::string &tag, const std::string &val)
 170 {
 171         int num_dots = 0;
 172         if (*p)
 173         {
 174                 if (*p == '.')
 175                         throw CoreException("The value of <"+tag+":"+val+"> is not a valid hostname");
 176                 for (const char* ptr = p; *ptr; ++ptr)
 177                 {
 178                         switch (*ptr)
 179                         {
 180                                 case ' ':
 181                                         throw CoreException("The value of <"+tag+":"+val+"> is not a valid hostname");
 182                                 case '.':
 183                                         num_dots++;
 184                                 break;
 185                         }
 186                 }
 187                 if (num_dots == 0)
 188                         throw CoreException("The value of <"+tag+":"+val+"> is not a valid hostname");
 189         }
 190 }
 191
 192 // Specialized validators
 193
 194 static bool ValidateMaxTargets(ServerConfig* conf, const char*, const char*, ValueItem &data)
 195 {
 196         if ((data.GetInteger() < 1) || (data.GetInteger() > 31))
 197         {
 198                 ServerInstance->Logs->Log("CONFIG",DEFAULT,"WARNING: <security:maxtargets> value is greater than 31 or less than 1, set to 20.");
 199                 data.Set(20);
 200         }
 201         return true;
 202 }
 203
 204 static bool ValidateSoftLimit(ServerConfig* conf, const char*, const char*, ValueItem &data)
 205 {
 206         if ((data.GetInteger() < 1) || (data.GetInteger() > ServerInstance->SE->GetMaxFds()))
 207         {
 208                 ServerInstance->Logs->Log("CONFIG",DEFAULT,"WARNING: <performance:softlimit> value is greater than %d or less than 0, set to %d.",ServerInstance->SE->GetMaxFds(),ServerInstance->SE->GetMaxFds());
 209                 data.Set(ServerInstance->SE->GetMaxFds());
 210         }
 211         return true;
 212 }
 213
 214 static bool ValidateMaxConn(ServerConfig* conf, const char*, const char*, ValueItem &data)
 215 {
 216         if (data.GetInteger() > SOMAXCONN)
 217                 ServerInstance->Logs->Log("CONFIG",DEFAULT,"WARNING: <performance:somaxconn> value may be higher than the system-defined SOMAXCONN value!");
 218         return true;
 219 }
 220
 221 bool ServerConfig::ApplyDisabledCommands(const std::string& data)
 222 {
 223         std::stringstream dcmds(data);
 224         std::string thiscmd;
 225
 226         /* Enable everything first */
 227         for (Commandtable::iterator x = ServerInstance->Parser->cmdlist.begin(); x != ServerInstance->Parser->cmdlist.end(); x++)
 228                 x->second->Disable(false);
 229
 230         /* Now disable all the ones which the user wants disabled */
 231         while (dcmds >> thiscmd)
 232         {
 233                 Commandtable::iterator cm = ServerInstance->Parser->cmdlist.find(thiscmd);
 234                 if (cm != ServerInstance->Parser->cmdlist.end())
 235                 {
 236                         cm->second->Disable(true);
 237                 }
 238         }
 239         return true;
 240 }
 241
 242 static bool ValidateDisabledUModes(ServerConfig* conf, const char*, const char*, ValueItem &data)
 243 {
 244         memset(conf->DisabledUModes, 0, sizeof(conf->DisabledUModes));
 245         for (const unsigned char* p = (const unsigned char*)data.GetString(); *p; ++p)
 246         {
 247                 if (*p < 'A' || *p > ('A' + 64)) throw CoreException(std::string("Invalid usermode ")+(char)*p+" was found.");
 248                 conf->DisabledUModes[*p - 'A'] = 1;
 249         }
 250         return true;
 251 }
 252
 253 static bool ValidateDisabledCModes(ServerConfig* conf, const char*, const char*, ValueItem &data)
 254 {
 255         memset(conf->DisabledCModes, 0, sizeof(conf->DisabledCModes));
 256         for (const unsigned char* p = (const unsigned char*)data.GetString(); *p; ++p)
 257         {
 258                 if (*p < 'A' || *p > ('A' + 64)) throw CoreException(std::string("Invalid chanmode ")+(char)*p+" was found.");
 259                 conf->DisabledCModes[*p - 'A'] = 1;
 260         }
 261         return true;
 262 }
 263
 264 #ifdef WINDOWS
 265 // Note: the windows validator is in win32wrapper.cpp
 266 bool ValidateDnsServer(ServerConfig* conf, const char*, const char*, ValueItem &data);
 267 #else
 268 static bool ValidateDnsServer(ServerConfig* conf, const char*, const char*, ValueItem &data)
 269 {
 270         if (!*(data.GetString()))
 271         {
 272                 std::string nameserver;
 273                 // attempt to look up their nameserver from /etc/resolv.conf
 274                 ServerInstance->Logs->Log("CONFIG",DEFAULT,"WARNING: <dns:server> not defined, attempting to find working server in /etc/resolv.conf...");
 275                 std::ifstream resolv("/etc/resolv.conf");
 276                 bool found_server = false;
 277
 278                 if (resolv.is_open())
 279                 {
 280                         while (resolv >> nameserver)
 281                         {
 282                                 if ((nameserver == "nameserver") && (!found_server))
 283                                 {
 284                                         resolv >> nameserver;
 285                                         data.Set(nameserver.c_str());
 286                                         found_server = true;
 287                                         ServerInstance->Logs->Log("CONFIG",DEFAULT,"<dns:server> set to '%s' as first resolver in /etc/resolv.conf.",nameserver.c_str());
 288                                 }
 289                         }
 290
 291                         if (!found_server)
 292                         {
 293                                 ServerInstance->Logs->Log("CONFIG",DEFAULT,"/etc/resolv.conf contains no viable nameserver entries! Defaulting to nameserver '127.0.0.1'!");
 294                                 data.Set("127.0.0.1");
 295                         }
 296                 }
 297                 else
 298                 {
 299                         ServerInstance->Logs->Log("CONFIG",DEFAULT,"/etc/resolv.conf can't be opened! Defaulting to nameserver '127.0.0.1'!");
 300                         data.Set("127.0.0.1");
 301                 }
 302         }
 303         return true;
 304 }
 305 #endif
 306
 307 static bool ValidateServerName(ServerConfig* conf, const char*, const char*, ValueItem &data)
 308 {
 309         ServerInstance->Logs->Log("CONFIG",DEFAULT,"Validating server name");
 310         /* If we already have a servername, and they changed it, we should throw an exception. */
 311         if (!strchr(data.GetString(), '.'))
 312         {
 313                 ServerInstance->Logs->Log("CONFIG",DEFAULT,"WARNING: <server:name> '%s' is not a fully-qualified domain name. Changed to '%s.'",
 314                         data.GetString(),data.GetString());
 315                 std::string moo = data.GetValue();
 316                 data.Set(moo.append("."));
 317         }
 318         ValidateHostname(data.GetString(), "server", "name");
 319         return true;
 320 }
 321
 322 static bool ValidateNetBufferSize(ServerConfig* conf, const char*, const char*, ValueItem &data)
 323 {
 324         // 65534 not 65535 because of null terminator
 325         if ((!data.GetInteger()) || (data.GetInteger() > 65534) || (data.GetInteger() < 1024))
 326         {
 327                 ServerInstance->Logs->Log("CONFIG",DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 328                 data.Set(10240);
 329         }
 330         return true;
 331 }
 332
 333 static bool ValidateMaxWho(ServerConfig* conf, const char*, const char*, ValueItem &data)
 334 {
 335         if ((data.GetInteger() > 65535) || (data.GetInteger() < 1))
 336         {
 337                 ServerInstance->Logs->Log("CONFIG",DEFAULT,"<performance:maxwho> size out of range, setting to default of 1024.");
 338                 data.Set(1024);
 339         }
 340         return true;
 341 }
 342
 343 static bool ValidateHalfOp(ServerConfig* conf, const char*, const char*, ValueItem &data)
 344 {
 345         ModeHandler* mh = ServerInstance->Modes->FindMode('h', MODETYPE_CHANNEL);
 346         if (data.GetBool() && !mh) {
 347                 ServerInstance->Logs->Log("CONFIG", DEFAULT, "Enabling halfop mode.");
 348                 mh = new ModeChannelHalfOp;
 349                 ServerInstance->Modes->AddMode(mh);
 350         } else if (!data.GetBool() && mh) {
 351                 ServerInstance->Logs->Log("CONFIG", DEFAULT, "Disabling halfop mode.");
 352                 ServerInstance->Modes->DelMode(mh);
 353                 delete mh;
 354         }
 355         return true;
 356 }
 357
 358 static bool ValidateMotd(ServerConfig* conf, const char*, const char*, ValueItem &data)
 359 {
 360         conf->ReadFile(conf->MOTD, data.GetString());
 361         return true;
 362 }
 363
 364 static bool ValidateNotEmpty(ServerConfig*, const char* tag, const char* val, ValueItem &data)
 365 {
 366         if (data.GetValue().empty())
 367                 throw CoreException(std::string("The value for <")+tag+":"+val+"> cannot be empty!");
 368         return true;
 369 }
 370
 371 static bool ValidateRules(ServerConfig* conf, const char*, const char*, ValueItem &data)
 372 {
 373         conf->ReadFile(conf->RULES, data.GetString());
 374         return true;
 375 }
 376
 377 static bool ValidateModeLists(ServerConfig* conf, const char*, const char*, ValueItem &data)
 378 {
 379         memset(conf->HideModeLists, 0, sizeof(conf->HideModeLists));
 380         for (const unsigned char* x = (const unsigned char*)data.GetString(); *x; ++x)
 381                 conf->HideModeLists[*x] = true;
 382         return true;
 383 }
 384
 385 static bool ValidateInvite(ServerConfig* conf, const char*, const char*, ValueItem &data)
 386 {
 387         const std::string& v = data.GetValue();
 388
 389         if (v == "ops")
 390                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_OPS;
 391         else if (v == "all")
 392                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_ALL;
 393         else if (v == "dynamic")
 394                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_DYNAMIC;
 395         else
 396                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_NONE;
 397
 398         return true;
 399 }
 400
 401 static bool ValidateSID(ServerConfig* conf, const char*, const char*, ValueItem &data)
 402 {
 403         ServerInstance->Logs->Log("CONFIG",DEFAULT,"Validating server id");
 404
 405         const std::string& sid = data.GetValue();
 406
 407         if (!sid.empty() && !ServerInstance->IsSID(sid))
 408         {
 409                 throw CoreException(sid + " is not a valid server ID. A server ID must be 3 characters long, with the first character a digit and the next two characters a digit or letter.");
 410         }
 411
 412         conf->sid = sid;
 413
 414         return true;
 415 }
 416
 417 static bool ValidateWhoWas(ServerConfig* conf, const char*, const char*, ValueItem &data)
 418 {
 419         conf->WhoWasMaxKeep = ServerInstance->Duration(data.GetString());
 420
 421         if (conf->WhoWasGroupSize < 0)
 422                 conf->WhoWasGroupSize = 0;
 423
 424         if (conf->WhoWasMaxGroups < 0)
 425                 conf->WhoWasMaxGroups = 0;
 426
 427         if (conf->WhoWasMaxKeep < 3600)
 428         {
 429                 conf->WhoWasMaxKeep = 3600;
 430                 ServerInstance->Logs->Log("CONFIG",DEFAULT,"WARNING: <whowas:maxkeep> value less than 3600, setting to default 3600");
 431         }
 432
 433         Module* whowas = ServerInstance->Modules->Find("cmd_whowas.so");
 434         if (whowas)
 435         {
 436                 WhowasRequest(NULL, whowas, WhowasRequest::WHOWAS_PRUNE).Send();
 437         }
 438
 439         return true;
 440 }
 441
 442 /* Callback called to process a single <uline> tag
 443  */
 444 static bool DoULine(ServerConfig* conf, const char*, const char**, ValueList &values, int*)
 445 {
 446         const char* server = values[0].GetString();
 447         const bool silent = values[1].GetBool();
 448         conf->ulines[server] = silent;
 449         return true;
 450 }
 451
 452 /* Callback called to process a single <banlist> tag
 453  */
 454 static bool DoMaxBans(ServerConfig* conf, const char*, const char**, ValueList &values, int*)
 455 {
 456         const char* channel = values[0].GetString();
 457         int limit = values[1].GetInteger();
 458         conf->maxbans[channel] = limit;
 459         return true;
 460 }
 461
 462 static bool DoZLine(ServerConfig* conf, const char* tag, const char** entries, ValueList &values, int* types)
 463 {
 464         const char* reason = values[0].GetString();
 465         const char* ipmask = values[1].GetString();
 466
 467         ZLine* zl = new ZLine(ServerInstance->Time(), 0, "<Config>", reason, ipmask);
 468         if (!ServerInstance->XLines->AddLine(zl, NULL))
 469                 delete zl;
 470
 471         return true;
 472 }
 473
 474 static bool DoQLine(ServerConfig* conf, const char* tag, const char** entries, ValueList &values, int* types)
 475 {
 476         const char* reason = values[0].GetString();
 477         const char* nick = values[1].GetString();
 478
 479         QLine* ql = new QLine(ServerInstance->Time(), 0, "<Config>", reason, nick);
 480         if (!ServerInstance->XLines->AddLine(ql, NULL))
 481                 delete ql;
 482
 483         return true;
 484 }
 485
 486 static bool DoKLine(ServerConfig* conf, const char* tag, const char** entries, ValueList &values, int* types)
 487 {
 488         const char* reason = values[0].GetString();
 489         const char* host = values[1].GetString();
 490
 491         XLineManager* xlm = ServerInstance->XLines;
 492
 493         IdentHostPair ih = xlm->IdentSplit(host);
 494
 495         KLine* kl = new KLine(ServerInstance->Time(), 0, "<Config>", reason, ih.first.c_str(), ih.second.c_str());
 496         if (!xlm->AddLine(kl, NULL))
 497                 delete kl;
 498         return true;
 499 }
 500
 501 static bool DoELine(ServerConfig* conf, const char* tag, const char** entries, ValueList &values, int* types)
 502 {
 503         const char* reason = values[0].GetString();
 504         const char* host = values[1].GetString();
 505
 506         XLineManager* xlm = ServerInstance->XLines;
 507
 508         IdentHostPair ih = xlm->IdentSplit(host);
 509
 510         ELine* el = new ELine(ServerInstance->Time(), 0, "<Config>", reason, ih.first.c_str(), ih.second.c_str());
 511         if (!xlm->AddLine(el, NULL))
 512                 delete el;
 513         return true;
 514 }
 515
 516 static bool DoType(ServerConfig* conf, const char*, const char**, ValueList &values, int*)
 517 {
 518         const char* TypeName = values[0].GetString();
 519         const char* Classes = values[1].GetString();
 520
 521         conf->opertypes[TypeName] = std::string(Classes);
 522         return true;
 523 }
 524
 525 static bool DoClass(ServerConfig* conf, const char* tag, const char**, ValueList &values, int*)
 526 {
 527         const char* ClassName = values[0].GetString();
 528         const char* CommandList = values[1].GetString();
 529         const char* UModeList = values[2].GetString();
 530         const char* CModeList = values[3].GetString();
 531         const char *PrivsList = values[4].GetString();
 532
 533         for (const char* c = UModeList; *c; ++c)
 534         {
 535                 if ((*c < 'A' || *c > 'z') && *c != '*')
 536                 {
 537                         throw CoreException("Character " + std::string(1, *c) + " is not a valid mode in <class:usermodes>");
 538                 }
 539         }
 540         for (const char* c = CModeList; *c; ++c)
 541         {
 542                 if ((*c < 'A' || *c > 'z') && *c != '*')
 543                 {
 544                         throw CoreException("Character " + std::string(1, *c) + " is not a valid mode in <class:chanmodes>");
 545                 }
 546         }
 547
 548         conf->operclass[ClassName].commandlist = CommandList;
 549         conf->operclass[ClassName].umodelist = UModeList;
 550         conf->operclass[ClassName].cmodelist = CModeList;
 551         conf->operclass[ClassName].privs = PrivsList;
 552         return true;
 553 }
 554
 555 void ServerConfig::CrossCheckOperClassType()
 556 {
 557         for (int i = 0; i < ConfValueEnum("type"); ++i)
 558         {
 559                 char item[MAXBUF], classn[MAXBUF], classes[MAXBUF];
 560                 std::string classname;
 561                 ConfValue("type", "classes", "", i, classes, MAXBUF, false);
 562                 irc::spacesepstream str(classes);
 563                 ConfValue("type", "name", "", i, item, MAXBUF, false);
 564                 while (str.GetToken(classname))
 565                 {
 566                         std::string lost;
 567                         bool foundclass = false;
 568                         for (int j = 0; j < ConfValueEnum("class"); ++j)
 569                         {
 570                                 ConfValue("class", "name", "", j, classn, MAXBUF, false);
 571                                 if (!strcmp(classn, classname.c_str()))
 572                                 {
 573                                         foundclass = true;
 574                                         break;
 575                                 }
 576                         }
 577                         if (!foundclass)
 578                         {
 579                                 char msg[MAXBUF];
 580                                 snprintf(msg, MAXBUF, " Warning: Oper type '%s' has a missing class named '%s', this does nothing!\n",
 581                                         item, classname.c_str());
 582                                 throw CoreException(msg);
 583                         }
 584                 }
 585         }
 586 }
 587
 588 void ServerConfig::CrossCheckConnectBlocks(ServerConfig* current)
 589 {
 590         typedef std::map<std::string, ConnectClass*> ClassMap;
 591         ClassMap oldBlocksByMask;
 592         if (current)
 593         {
 594                 for(ClassVector::iterator i = current->Classes.begin(); i != current->Classes.end(); ++i)
 595                 {
 596                         ConnectClass* c = *i;
 597                         std::string typeMask = (c->type == CC_ALLOW) ? "a" : "d";
 598                         typeMask += c->host;
 599                         oldBlocksByMask[typeMask] = c;
 600                 }
 601         }
 602
 603         int block_count = ConfValueEnum("connect");
 604         ClassMap newBlocksByMask;
 605         Classes.resize(block_count, NULL);
 606         std::map<std::string, int> names;
 607
 608         bool try_again = true;
 609         for(int tries=0; try_again && tries < block_count + 1; tries++)
 610         {
 611                 try_again = false;
 612                 for(int i=0; i < block_count; i++)
 613                 {
 614                         if (Classes[i])
 615                                 continue;
 616
 617                         ConnectClass* parent = NULL;
 618                         std::string parentName;
 619                         if (ConfValue("connect", "parent", i, parentName, false))
 620                         {
 621                                 std::map<std::string,int>::iterator parentIter = names.find(parentName);
 622                                 if (parentIter == names.end())
 623                                 {
 624                                         try_again = true;
 625                                         // couldn't find parent this time. If it's the last time, we'll never find it.
 626                                         if (tries == block_count)
 627                                                 throw CoreException("Could not find parent connect class \"" + parentName + "\" for connect block " + ConvToStr(i));
 628                                         continue;
 629                                 }
 630                                 parent = Classes[parentIter->second];
 631                         }
 632
 633                         std::string name;
 634                         if (ConfValue("connect", "name", i, name, false))
 635                         {
 636                                 if (names.find(name) != names.end())
 637                                         throw CoreException("Two connect classes with name \"" + name + "\" defined!");
 638                                 names[name] = i;
 639                         }
 640
 641                         std::string mask, typeMask;
 642                         char type;
 643
 644                         if (ConfValue("connect", "allow", i, mask, false))
 645                         {
 646                                 type = CC_ALLOW;
 647                                 typeMask = 'a' + mask;
 648                         }
 649                         else if (ConfValue("connect", "deny", i, mask, false))
 650                         {
 651                                 type = CC_DENY;
 652                                 typeMask = 'd' + mask;
 653                         }
 654                         else
 655                         {
 656                                 throw CoreException("Connect class must have an allow or deny mask (#" + ConvToStr(i) + ")");
 657                         }
 658                         ClassMap::iterator dupMask = newBlocksByMask.find(typeMask);
 659                         if (dupMask != newBlocksByMask.end())
 660                                 throw CoreException("Two connect classes cannot have the same mask (" + mask + ")");
 661
 662                         ConnectClass* me = parent ?
 663                                 new ConnectClass(type, mask, *parent) :
 664                                 new ConnectClass(type, mask);
 665
 666                         if (!name.empty())
 667                                 me->name = name;
 668
 669                         std::string tmpv;
 670                         if (ConfValue("connect", "password", i, tmpv, false))
 671                                 me->pass= tmpv;
 672                         if (ConfValue("connect", "hash", i, tmpv, false))
 673                                 me->hash = tmpv;
 674                         if (ConfValue("connect", "timeout", i, tmpv, false))
 675                                 me->registration_timeout = atol(tmpv.c_str());
 676                         if (ConfValue("connect", "pingfreq", i, tmpv, false))
 677                                 me->pingtime = atol(tmpv.c_str());
 678                         if (ConfValue("connect", "sendq", i, tmpv, false))
 679                         {
 680                                 // attempt to guess a good hard/soft sendq from a single value
 681                                 long value = atol(tmpv.c_str());
 682                                 if (value > 16384)
 683                                         me->softsendqmax = value / 16;
 684                                 else
 685                                         me->softsendqmax = value;
 686                                 me->hardsendqmax = value * 8;
 687                         }
 688                         if (ConfValue("connect", "softsendq", i, tmpv, false))
 689                                 me->softsendqmax = atol(tmpv.c_str());
 690                         if (ConfValue("connect", "hardsendq", i, tmpv, false))
 691                                 me->hardsendqmax = atol(tmpv.c_str());
 692                         if (ConfValue("connect", "recvq", i, tmpv, false))
 693                                 me->recvqmax = atol(tmpv.c_str());
 694                         if (ConfValue("connect", "localmax", i, tmpv, false))
 695                                 me->maxlocal = atol(tmpv.c_str());
 696                         if (ConfValue("connect", "globalmax", i, tmpv, false))
 697                                 me->maxglobal = atol(tmpv.c_str());
 698                         if (ConfValue("connect", "port", i, tmpv, false))
 699                                 me->port = atol(tmpv.c_str());
 700                         if (ConfValue("connect", "maxchans", i, tmpv, false))
 701                                 me->maxchans = atol(tmpv.c_str());
 702                         if (ConfValue("connect", "limit", i, tmpv, false))
 703                                 me->limit = atol(tmpv.c_str());
 704
 705                         ClassMap::iterator oldMask = oldBlocksByMask.find(typeMask);
 706                         if (oldMask != oldBlocksByMask.end())
 707                         {
 708                                 ConnectClass* old = oldMask->second;
 709                                 oldBlocksByMask.erase(oldMask);
 710                                 old->Update(me);
 711                                 delete me;
 712                                 me = old;
 713                         }
 714                         newBlocksByMask[typeMask] = me;
 715                         Classes[i] = me;
 716                 }
 717         }
 718 }
 719
 720
 721 static const Deprecated ChangedConfig[] = {
 722         {"options", "hidelinks",                "has been moved to <security:hidelinks> as of 1.2a3"},
 723         {"options", "hidewhois",                "has been moved to <security:hidewhois> as of 1.2a3"},
 724         {"options", "userstats",                "has been moved to <security:userstats> as of 1.2a3"},
 725         {"options", "customversion",    "has been moved to <security:customversion> as of 1.2a3"},
 726         {"options", "hidesplits",               "has been moved to <security:hidesplits> as of 1.2a3"},
 727         {"options", "hidebans",         "has been moved to <security:hidebans> as of 1.2a3"},
 728         {"options", "hidekills",                "has been moved to <security:hidekills> as of 1.2a3"},
 729         {"options", "operspywhois",             "has been moved to <security:operspywhois> as of 1.2a3"},
 730         {"options", "announceinvites",  "has been moved to <security:announceinvites> as of 1.2a3"},
 731         {"options", "hidemodes",                "has been moved to <security:hidemodes> as of 1.2a3"},
 732         {"options", "maxtargets",               "has been moved to <security:maxtargets> as of 1.2a3"},
 733         {"options",     "nouserdns",            "has been moved to <performance:nouserdns> as of 1.2a3"},
 734         {"options",     "maxwho",               "has been moved to <performance:maxwho> as of 1.2a3"},
 735         {"options",     "softlimit",            "has been moved to <performance:softlimit> as of 1.2a3"},
 736         {"options", "somaxconn",                "has been moved to <performance:somaxconn> as of 1.2a3"},
 737         {"options", "netbuffersize",    "has been moved to <performance:netbuffersize> as of 1.2a3"},
 738         {"options", "maxwho",           "has been moved to <performance:maxwho> as of 1.2a3"},
 739         {"options",     "loglevel",             "1.2 does not use the loglevel value. Please define <log> tags instead."},
 740         {"die",     "value",            "has always been deprecated"},
 741 };
 742
 743 /* These tags can occur ONCE or not at all */
 744 static const InitialConfig Values[] = {
 745         {"performance", "softlimit",    "0",                    new ValueContainerUInt (&ServerConfig::SoftLimit),              DT_INTEGER,  ValidateSoftLimit},
 746         {"performance", "somaxconn",    SOMAXCONN_S,            new ValueContainerInt  (&ServerConfig::MaxConn),                DT_INTEGER,  ValidateMaxConn},
 747         {"options",     "moronbanner",  "You're banned!",       new ValueContainerString (&ServerConfig::MoronBanner),          DT_CHARPTR,  NULL},
 748         {"server",      "name",         "",                     new ValueContainerString (&ServerConfig::ServerName),           DT_HOSTNAME, ValidateServerName},
 749         {"server",      "description",  "Configure Me",         new ValueContainerString (&ServerConfig::ServerDesc),           DT_CHARPTR,  NULL},
 750         {"server",      "network",      "Network",              new ValueContainerString (&ServerConfig::Network),                      DT_NOSPACES, NULL},
 751         {"server",      "id",           "",                     new ValueContainerString (&ServerConfig::sid),                  DT_CHARPTR,  ValidateSID},
 752         {"admin",       "name",         "",                     new ValueContainerString (&ServerConfig::AdminName),            DT_CHARPTR,  NULL},
 753         {"admin",       "email",        "Mis@configu.red",      new ValueContainerString (&ServerConfig::AdminEmail),           DT_CHARPTR,  NULL},
 754         {"admin",       "nick",         "Misconfigured",        new ValueContainerString (&ServerConfig::AdminNick),            DT_CHARPTR,  NULL},
 755         {"files",       "motd",         "",                     new ValueContainerString (&ServerConfig::motd),                 DT_CHARPTR,  ValidateMotd},
 756         {"files",       "rules",        "",                     new ValueContainerString (&ServerConfig::rules),                        DT_CHARPTR,  ValidateRules},
 757         {"power",       "diepass",      "",                     new ValueContainerString (&ServerConfig::diepass),                      DT_CHARPTR,  ValidateNotEmpty},
 758         {"power",       "pause",        "",                     new ValueContainerInt  (&ServerConfig::DieDelay),               DT_INTEGER,  NULL},
 759         {"power",       "hash",         "",                     new ValueContainerString (&ServerConfig::powerhash),            DT_CHARPTR,  NULL},
 760         {"power",       "restartpass",  "",                     new ValueContainerString (&ServerConfig::restartpass),          DT_CHARPTR,  ValidateNotEmpty},
 761         {"options",     "prefixquit",   "",                     new ValueContainerString (&ServerConfig::PrefixQuit),           DT_CHARPTR,  NULL},
 762         {"options",     "suffixquit",   "",                     new ValueContainerString (&ServerConfig::SuffixQuit),           DT_CHARPTR,  NULL},
 763         {"options",     "fixedquit",    "",                     new ValueContainerString (&ServerConfig::FixedQuit),            DT_CHARPTR,  NULL},
 764         {"options",     "prefixpart",   "",                     new ValueContainerString (&ServerConfig::PrefixPart),           DT_CHARPTR,  NULL},
 765         {"options",     "suffixpart",   "",                     new ValueContainerString (&ServerConfig::SuffixPart),           DT_CHARPTR,  NULL},
 766         {"options",     "fixedpart",    "",                     new ValueContainerString (&ServerConfig::FixedPart),            DT_CHARPTR,  NULL},
 767         {"performance", "netbuffersize","10240",                new ValueContainerInt  (&ServerConfig::NetBufferSize),          DT_INTEGER,  ValidateNetBufferSize},
 768         {"performance", "maxwho",       "1024",                 new ValueContainerInt  (&ServerConfig::MaxWhoResults),          DT_INTEGER,  ValidateMaxWho},
 769         {"options",     "allowhalfop",  "0",                    new ValueContainerBool (&ServerConfig::AllowHalfop),            DT_BOOLEAN,  ValidateHalfOp},
 770         {"dns",         "server",       "",                     new ValueContainerString (&ServerConfig::DNSServer),            DT_IPADDRESS,ValidateDnsServer},
 771         {"dns",         "timeout",      "5",                    new ValueContainerInt  (&ServerConfig::dns_timeout),            DT_INTEGER,  NULL},
 772         {"options",     "moduledir",    MOD_PATH,               new ValueContainerString (&ServerConfig::ModPath),                      DT_CHARPTR,  NULL},
 773         {"disabled",    "commands",     "",                     new ValueContainerString (&ServerConfig::DisabledCommands),     DT_CHARPTR,  NULL},
 774         {"disabled",    "usermodes",    "",                     NULL, DT_NOTHING,  ValidateDisabledUModes},
 775         {"disabled",    "chanmodes",    "",                     NULL, DT_NOTHING,  ValidateDisabledCModes},
 776         {"disabled",    "fakenonexistant",      "0",            new ValueContainerBool (&ServerConfig::DisabledDontExist),              DT_BOOLEAN,  NULL},
 777
 778         {"security",            "runasuser",    "",             new ValueContainerString(&ServerConfig::SetUser),                               DT_CHARPTR, NULL},
 779         {"security",            "runasgroup",   "",             new ValueContainerString(&ServerConfig::SetGroup),                              DT_CHARPTR, NULL},
 780         {"security",    "userstats",    "",                     new ValueContainerString (&ServerConfig::UserStats),            DT_CHARPTR,  NULL},
 781         {"security",    "customversion","",                     new ValueContainerString (&ServerConfig::CustomVersion),                DT_CHARPTR,  NULL},
 782         {"security",    "hidesplits",   "0",                    new ValueContainerBool (&ServerConfig::HideSplits),             DT_BOOLEAN,  NULL},
 783         {"security",    "hidebans",     "0",                    new ValueContainerBool (&ServerConfig::HideBans),               DT_BOOLEAN,  NULL},
 784         {"security",    "hidewhois",    "",                     new ValueContainerString (&ServerConfig::HideWhoisServer),              DT_NOSPACES, NULL},
 785         {"security",    "hidekills",    "",                     new ValueContainerString (&ServerConfig::HideKillsServer),              DT_NOSPACES,  NULL},
 786         {"security",    "operspywhois", "0",                    new ValueContainerBool (&ServerConfig::OperSpyWhois),           DT_BOOLEAN,  NULL},
 787         {"security",    "restrictbannedusers",  "1",            new ValueContainerBool (&ServerConfig::RestrictBannedUsers),            DT_BOOLEAN,  NULL},
 788         {"security",    "genericoper",  "0",                    new ValueContainerBool (&ServerConfig::GenericOper),            DT_BOOLEAN,  NULL},
 789         {"performance", "nouserdns",    "0",                    new ValueContainerBool (&ServerConfig::NoUserDns),              DT_BOOLEAN,  NULL},
 790         {"options",     "syntaxhints",  "0",                    new ValueContainerBool (&ServerConfig::SyntaxHints),            DT_BOOLEAN,  NULL},
 791         {"options",     "cyclehosts",   "0",                    new ValueContainerBool (&ServerConfig::CycleHosts),             DT_BOOLEAN,  NULL},
 792         {"options",     "ircumsgprefix","0",                    new ValueContainerBool (&ServerConfig::UndernetMsgPrefix),      DT_BOOLEAN,  NULL},
 793         {"security",    "announceinvites", "1",                 NULL, DT_NOTHING,  ValidateInvite},
 794         {"options",     "hostintopic",  "1",                    new ValueContainerBool (&ServerConfig::FullHostInTopic),        DT_BOOLEAN,  NULL},
 795         {"security",    "hidemodes",    "",                     NULL, DT_NOTHING,  ValidateModeLists},
 796         {"security",    "maxtargets",   "20",                   new ValueContainerUInt (&ServerConfig::MaxTargets),             DT_INTEGER,  ValidateMaxTargets},
 797         {"options",     "defaultmodes", "nt",                   new ValueContainerString (&ServerConfig::DefaultModes),         DT_CHARPTR,  NULL},
 798         {"pid",         "file",         "",                     new ValueContainerString (&ServerConfig::PID),                  DT_CHARPTR,  NULL},
 799         {"whowas",      "groupsize",    "10",                   new ValueContainerInt  (&ServerConfig::WhoWasGroupSize),        DT_INTEGER,  NULL},
 800         {"whowas",      "maxgroups",    "10240",                new ValueContainerInt  (&ServerConfig::WhoWasMaxGroups),        DT_INTEGER,  NULL},
 801         {"whowas",      "maxkeep",      "3600",                 NULL, DT_NOTHING,  ValidateWhoWas},
 802         {"die",         "value",        "",                     new ValueContainerString (&ServerConfig::DieValue),             DT_CHARPTR,  NULL},
 803         {"channels",    "users",        "20",                   new ValueContainerUInt (&ServerConfig::MaxChans),               DT_INTEGER,  NULL},
 804         {"channels",    "opers",        "60",                   new ValueContainerUInt (&ServerConfig::OperMaxChans),           DT_INTEGER,  NULL},
 805         {"cidr",        "ipv4clone",    "32",                   new ValueContainerInt (&ServerConfig::c_ipv4_range),            DT_INTEGER,  NULL},
 806         {"cidr",        "ipv6clone",    "128",                  new ValueContainerInt (&ServerConfig::c_ipv6_range),            DT_INTEGER,  NULL},
 807         {"limits",      "maxnick",      "32",                   new ValueContainerLimit (&ServerLimits::NickMax),               DT_LIMIT,  NULL},
 808         {"limits",      "maxchan",      "64",                   new ValueContainerLimit (&ServerLimits::ChanMax),               DT_LIMIT,  NULL},
 809         {"limits",      "maxmodes",     "20",                   new ValueContainerLimit (&ServerLimits::MaxModes),              DT_LIMIT,  NULL},
 810         {"limits",      "maxident",     "11",                   new ValueContainerLimit (&ServerLimits::IdentMax),              DT_LIMIT,  NULL},
 811         {"limits",      "maxquit",      "255",                  new ValueContainerLimit (&ServerLimits::MaxQuit),               DT_LIMIT,  NULL},
 812         {"limits",      "maxtopic",     "307",                  new ValueContainerLimit (&ServerLimits::MaxTopic),              DT_LIMIT,  NULL},
 813         {"limits",      "maxkick",      "255",                  new ValueContainerLimit (&ServerLimits::MaxKick),               DT_LIMIT,  NULL},
 814         {"limits",      "maxgecos",     "128",                  new ValueContainerLimit (&ServerLimits::MaxGecos),              DT_LIMIT,  NULL},
 815         {"limits",      "maxaway",      "200",                  new ValueContainerLimit (&ServerLimits::MaxAway),               DT_LIMIT,  NULL},
 816         {"options",     "invitebypassmodes",    "1",                    new ValueContainerBool (&ServerConfig::InvBypassModes),         DT_BOOLEAN,  NULL},
 817 };
 818
 819 InitialConfig::~InitialConfig()
 820 {
 821         delete val;
 822 }
 823
 824 /* These tags can occur multiple times, and therefore they have special code to read them
 825  * which is different to the code for reading the singular tags listed above.
 826  */
 827 MultiConfig MultiValues[] = {
 828
 829         {"connect",
 830                         {"allow",       "deny",         "password",     "timeout",      "pingfreq",
 831                         "sendq",        "recvq",        "localmax",     "globalmax",    "port",
 832                         "name",         "parent",       "maxchans",     "limit",        "hash",
 833                         NULL},
 834                         {"",            "",                             "",                     "",                     "120",
 835                          "",            "",                             "3",            "3",            "0",
 836                          "",            "",                             "0",        "0",                "",
 837                          NULL},
 838                         {DT_IPADDRESS|DT_ALLOW_WILD, DT_IPADDRESS|DT_ALLOW_WILD, DT_CHARPTR,    DT_INTEGER,     DT_INTEGER,
 839                         DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,
 840                         DT_NOSPACES,    DT_NOSPACES,    DT_INTEGER,     DT_INTEGER,     DT_CHARPTR},
 841                         NULL,},
 842
 843         {"uline",
 844                         {"server",      "silent",       NULL},
 845                         {"",            "0",            NULL},
 846                         {DT_HOSTNAME,   DT_BOOLEAN},
 847                         DoULine},
 848
 849         {"banlist",
 850                         {"chan",        "limit",        NULL},
 851                         {"",            "",             NULL},
 852                         {DT_CHARPTR,    DT_INTEGER},
 853                         DoMaxBans},
 854
 855         {"module",
 856                         {"name",        NULL},
 857                         {"",            NULL},
 858                         {DT_CHARPTR},
 859                         NULL},
 860
 861         {"badip",
 862                         {"reason",      "ipmask",       NULL},
 863                         {"No reason",   "",             NULL},
 864                         {DT_CHARPTR,    DT_IPADDRESS|DT_ALLOW_WILD},
 865                         DoZLine},
 866
 867         {"badnick",
 868                         {"reason",      "nick",         NULL},
 869                         {"No reason",   "",             NULL},
 870                         {DT_CHARPTR,    DT_CHARPTR},
 871                         DoQLine},
 872
 873         {"badhost",
 874                         {"reason",      "host",         NULL},
 875                         {"No reason",   "",             NULL},
 876                         {DT_CHARPTR,    DT_CHARPTR},
 877                         DoKLine},
 878
 879         {"exception",
 880                         {"reason",      "host",         NULL},
 881                         {"No reason",   "",             NULL},
 882                         {DT_CHARPTR,    DT_CHARPTR},
 883                         DoELine},
 884
 885         {"type",
 886                         {"name",        "classes",      NULL},
 887                         {"",            "",             NULL},
 888                         {DT_NOSPACES,   DT_CHARPTR},
 889                         DoType},
 890
 891         {"class",
 892                         {"name",        "commands",     "usermodes",    "chanmodes",    "privs",        NULL},
 893                         {"",            "",                             "",                             "",                     "",                     NULL},
 894                         {DT_NOSPACES,   DT_CHARPTR,     DT_CHARPTR,     DT_CHARPTR, DT_CHARPTR},
 895                         DoClass},
 896 };
 897
 898 /* These tags MUST occur and must ONLY occur once in the config file */
 899 static const char* Once[] = { "server", "admin", "files", "power", "options" };
 900
 901 // WARNING: it is not safe to use most of the codebase in this function, as it
 902 // will run in the config reader thread
 903 void ServerConfig::Read()
 904 {
 905         /* Load and parse the config file, if there are any errors then explode */
 906
 907         if (!this->DoInclude(ServerInstance->ConfigFileName, true))
 908         {
 909                 valid = false;
 910                 return;
 911         }
 912 }
 913
 914 void ServerConfig::Apply(ServerConfig* old, const std::string &useruid)
 915 {
 916         valid = true;
 917         /* std::ostringstream::clear() does not clear the string itself, only the error flags. */
 918         errstr.clear();
 919         errstr.str().clear();
 920         include_stack.clear();
 921
 922         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 923         try
 924         {
 925                 /* Check we dont have more than one of singular tags, or any of them missing
 926                  */
 927                 for (int Index = 0; Index * sizeof(*Once) < sizeof(Once); Index++)
 928                         CheckOnce(Once[Index]);
 929
 930                 for (int Index = 0; Index * sizeof(Deprecated) < sizeof(ChangedConfig); Index++)
 931                 {
 932                         char item[MAXBUF];
 933                         *item = 0;
 934                         if (ConfValue(ChangedConfig[Index].tag, ChangedConfig[Index].value, "", 0, item, MAXBUF, true) || *item)
 935                                 throw CoreException(std::string("Your configuration contains a deprecated value: <") + ChangedConfig[Index].tag + ":" + ChangedConfig[Index].value + "> - " + ChangedConfig[Index].reason);
 936                 }
 937
 938                 /* Read the values of all the tags which occur once or not at all, and call their callbacks.
 939                  */
 940                 for (int Index = 0; Index * sizeof(*Values) < sizeof(Values); ++Index)
 941                 {
 942                         char item[MAXBUF];
 943                         int dt = Values[Index].datatype;
 944                         bool allow_newlines = ((dt & DT_ALLOW_NEWLINE) > 0);
 945                         bool allow_wild = ((dt & DT_ALLOW_WILD) > 0);
 946                         dt &= ~DT_ALLOW_NEWLINE;
 947                         dt &= ~DT_ALLOW_WILD;
 948
 949                         ConfValue(Values[Index].tag, Values[Index].value, Values[Index].default_value, 0, item, MAXBUF, allow_newlines);
 950                         ValueItem vi(item);
 951
 952                         if (Values[Index].validation_function && !Values[Index].validation_function(this, Values[Index].tag, Values[Index].value, vi))
 953                                 throw CoreException("One or more values in your configuration file failed to validate. Please see your ircd.log for more information.");
 954
 955                         switch (dt)
 956                         {
 957                                 case DT_NOSPACES:
 958                                 {
 959                                         ValueContainerString* vcc = (ValueContainerString*)Values[Index].val;
 960                                         ValidateNoSpaces(vi.GetString(), Values[Index].tag, Values[Index].value);
 961                                         vcc->Set(this, vi.GetValue());
 962                                 }
 963                                 break;
 964                                 case DT_HOSTNAME:
 965                                 {
 966                                         ValueContainerString* vcc = (ValueContainerString*)Values[Index].val;
 967                                         ValidateHostname(vi.GetString(), Values[Index].tag, Values[Index].value);
 968                                         vcc->Set(this, vi.GetValue());
 969                                 }
 970                                 break;
 971                                 case DT_IPADDRESS:
 972                                 {
 973                                         ValueContainerString* vcc = (ValueContainerString*)Values[Index].val;
 974                                         ValidateIP(vi.GetString(), Values[Index].tag, Values[Index].value, allow_wild);
 975                                         vcc->Set(this, vi.GetValue());
 976                                 }
 977                                 break;
 978                                 case DT_CHANNEL:
 979                                 {
 980                                         ValueContainerString* vcc = (ValueContainerString*)Values[Index].val;
 981                                         if (*(vi.GetString()) && !ServerInstance->IsChannel(vi.GetString(), MAXBUF))
 982                                         {
 983                                                 throw CoreException("The value of <"+std::string(Values[Index].tag)+":"+Values[Index].value+"> is not a valid channel name");
 984                                         }
 985                                         vcc->Set(this, vi.GetValue());
 986                                 }
 987                                 break;
 988                                 case DT_CHARPTR:
 989                                 {
 990                                         ValueContainerString* vcs = dynamic_cast<ValueContainerString*>(Values[Index].val);
 991                                         if (vcs)
 992                                                 vcs->Set(this, vi.GetValue());
 993                                 }
 994                                 break;
 995                                 case DT_INTEGER:
 996                                 {
 997                                         int val = vi.GetInteger();
 998                                         ValueContainerInt* vci = (ValueContainerInt*)Values[Index].val;
 999                                         vci->Set(this, val);
1000                                 }
1001                                 break;
1002                                 case DT_LIMIT:
1003                                 {
1004                                         int val = vi.GetInteger();
1005                                         ValueContainerLimit* vci = (ValueContainerLimit*)Values[Index].val;
1006                                         vci->Set(this, val);
1007                                 }
1008                                 break;
1009                                 case DT_BOOLEAN:
1010                                 {
1011                                         bool val = vi.GetBool();
1012                                         ValueContainerBool* vcb = (ValueContainerBool*)Values[Index].val;
1013                                         vcb->Set(this, val);
1014                                 }
1015                                 break;
1016                         }
1017                 }
1018
1019                 /* Read the multiple-tag items (class tags, connect tags, etc)
1020                  * and call the callbacks associated with them. We have three
1021                  * callbacks for these, a 'start', 'item' and 'end' callback.
1022                  */
1023                 for (int Index = 0; Index * sizeof(MultiConfig) < sizeof(MultiValues); ++Index)
1024                 {
1025                         int number_of_tags = ConfValueEnum(MultiValues[Index].tag);
1026
1027                         for (int tagnum = 0; tagnum < number_of_tags; ++tagnum)
1028                         {
1029                                 ValueList vl;
1030                                 for (int valuenum = 0; (MultiValues[Index].items[valuenum]) && (valuenum < MAX_VALUES_PER_TAG); ++valuenum)
1031                                 {
1032                                         int dt = MultiValues[Index].datatype[valuenum];
1033                                         bool allow_newlines =  ((dt & DT_ALLOW_NEWLINE) > 0);
1034                                         bool allow_wild = ((dt & DT_ALLOW_WILD) > 0);
1035                                         dt &= ~DT_ALLOW_NEWLINE;
1036                                         dt &= ~DT_ALLOW_WILD;
1037
1038                                         switch (dt)
1039                                         {
1040                                                 case DT_NOSPACES:
1041                                                 {
1042                                                         char item[MAXBUF];
1043                                                         if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1044                                                                 vl.push_back(ValueItem(item));
1045                                                         else
1046                                                                 vl.push_back(ValueItem(""));
1047                                                         ValidateNoSpaces(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum]);
1048                                                 }
1049                                                 break;
1050                                                 case DT_HOSTNAME:
1051                                                 {
1052                                                         char item[MAXBUF];
1053                                                         if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1054                                                                 vl.push_back(ValueItem(item));
1055                                                         else
1056                                                                 vl.push_back(ValueItem(""));
1057                                                         ValidateHostname(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum]);
1058                                                 }
1059                                                 break;
1060                                                 case DT_IPADDRESS:
1061                                                 {
1062                                                         char item[MAXBUF];
1063                                                         if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1064                                                                 vl.push_back(ValueItem(item));
1065                                                         else
1066                                                                 vl.push_back(ValueItem(""));
1067                                                         ValidateIP(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum], allow_wild);
1068                                                 }
1069                                                 break;
1070                                                 case DT_CHANNEL:
1071                                                 {
1072                                                         char item[MAXBUF];
1073                                                         if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1074                                                                 vl.push_back(ValueItem(item));
1075                                                         else
1076                                                                 vl.push_back(ValueItem(""));
1077                                                         if (!ServerInstance->IsChannel(vl[vl.size()-1].GetString(), MAXBUF))
1078                                                                 throw CoreException("The value of <"+std::string(MultiValues[Index].tag)+":"+MultiValues[Index].items[valuenum]+"> number "+ConvToStr(tagnum + 1)+" is not a valid channel name");
1079                                                 }
1080                                                 break;
1081                                                 case DT_CHARPTR:
1082                                                 {
1083                                                         char item[MAXBUF];
1084                                                         if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1085                                                                 vl.push_back(ValueItem(item));
1086                                                         else
1087                                                                 vl.push_back(ValueItem(""));
1088                                                 }
1089                                                 break;
1090                                                 case DT_INTEGER:
1091                                                 {
1092                                                         int item = 0;
1093                                                         if (ConfValueInteger(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item))
1094                                                                 vl.push_back(ValueItem(item));
1095                                                         else
1096                                                                 vl.push_back(ValueItem(0));
1097                                                 }
1098                                                 break;
1099                                                 case DT_BOOLEAN:
1100                                                 {
1101                                                         bool item = ConfValueBool(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum);
1102                                                         vl.push_back(ValueItem(item));
1103                                                 }
1104                                                 break;
1105                                         }
1106                                 }
1107                                 if (MultiValues[Index].validation_function)
1108                                         MultiValues[Index].validation_function(this, MultiValues[Index].tag, MultiValues[Index].items, vl, MultiValues[Index].datatype);
1109                         }
1110                 }
1111
1112                 /* Finalise the limits, increment them all by one so that we can just put assign(str, 0, val)
1113                  * rather than assign(str, 0, val + 1)
1114                  */
1115                 Limits.Finalise();
1116
1117                 // Handle special items
1118                 CrossCheckOperClassType();
1119                 CrossCheckConnectBlocks(old);
1120         }
1121         catch (CoreException &ce)
1122         {
1123                 errstr << ce.GetReason();
1124                 valid = false;
1125         }
1126
1127         // write once here, to try it out and make sure its ok
1128         ServerInstance->WritePID(this->PID);
1129
1130         /*
1131          * These values can only be set on boot. Keep their old values. Do it before we send messages so we actually have a servername.
1132          */
1133         if (old)
1134         {
1135                 this->ServerName = old->ServerName;
1136                 this->sid = old->sid;
1137                 this->argv = old->argv;
1138                 this->argc = old->argc;
1139
1140                 // Same for ports... they're bound later on first run.
1141                 FailedPortList pl;
1142                 ServerInstance->BindPorts(pl);
1143                 if (pl.size())
1144                 {
1145                         errstr << "Not all your client ports could be bound.\nThe following port(s) failed to bind:\n";
1146
1147                         int j = 1;
1148                         for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
1149                         {
1150                                 char buf[MAXBUF];
1151                                 snprintf(buf, MAXBUF, "%d.   Address: %s   Reason: %s\n", j, i->first.empty() ? "<all>" : i->first.c_str(), i->second.c_str());
1152                                 errstr << buf;
1153                         }
1154                 }
1155         }
1156
1157         User* user = useruid.empty() ? NULL : ServerInstance->FindNick(useruid);
1158
1159         valid = errstr.str().empty();
1160         if (!valid)
1161                 ServerInstance->Logs->Log("CONFIG",DEFAULT, "There were errors in your configuration file:");
1162
1163         while (errstr.good())
1164         {
1165                 std::string line;
1166                 getline(errstr, line, '\n');
1167                 if (!line.empty())
1168                 {
1169                         if (user)
1170                                 user->WriteServ("NOTICE %s :*** %s", user->nick.c_str(), line.c_str());
1171                         else
1172                                 ServerInstance->SNO->WriteGlobalSno('a', line);
1173                 }
1174
1175                 if (!old)
1176                 {
1177                         // Starting up, so print it out so it's seen. XXX this is a bit of a hack.
1178                         printf("%s\n", line.c_str());
1179                 }
1180         }
1181
1182         errstr.clear();
1183         errstr.str(std::string());
1184
1185         /* No old configuration -> initial boot, nothing more to do here */
1186         if (!old)
1187         {
1188                 if (!valid)
1189                 {
1190                         ServerInstance->Exit(EXIT_STATUS_CONFIG);
1191                 }
1192
1193                 return;
1194         }
1195
1196         // If there were errors processing configuration, don't touch modules.
1197         if (!valid)
1198                 return;
1199
1200         ApplyModules(user);
1201 }
1202
1203 void ServerConfig::ApplyModules(User* user)
1204 {
1205         const std::vector<std::string> v = ServerInstance->Modules->GetAllModuleNames(0);
1206         std::vector<std::string> added_modules;
1207         std::set<std::string> removed_modules(v.begin(), v.end());
1208
1209         int new_module_count = ConfValueEnum("module");
1210         for(int i=0; i < new_module_count; i++)
1211         {
1212                 std::string name;
1213                 if (ConfValue("module", "name", i, name, false))
1214                 {
1215                         // if this module is already loaded, the erase will succeed, so we need do nothing
1216                         // otherwise, we need to add the module (which will be done later)
1217                         if (removed_modules.erase(name) == 0)
1218                                 added_modules.push_back(name);
1219                 }
1220         }
1221
1222         for (std::set<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
1223         {
1224                 // Don't remove cmd_*.so, just remove m_*.so
1225                 if (removing->c_str()[0] == 'c')
1226                         continue;
1227                 Module* m = ServerInstance->Modules->Find(*removing);
1228                 if (m && ServerInstance->Modules->Unload(m))
1229                 {
1230                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH UNLOADED MODULE: %s",removing->c_str());
1231
1232                         if (user)
1233                                 user->WriteNumeric(RPL_UNLOADEDMODULE, "%s %s :Module %s successfully unloaded.",user->nick.c_str(), removing->c_str(), removing->c_str());
1234                         else
1235                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully unloaded.", removing->c_str());
1236                 }
1237                 else
1238                 {
1239                         if (user)
1240                                 user->WriteNumeric(ERR_CANTUNLOADMODULE, "%s %s :Failed to unload module %s: %s",user->nick.c_str(), removing->c_str(), removing->c_str(), ServerInstance->Modules->LastError().c_str());
1241                         else
1242                                  ServerInstance->SNO->WriteGlobalSno('a', "Failed to unload module %s: %s", removing->c_str(), ServerInstance->Modules->LastError().c_str());
1243                 }
1244         }
1245
1246         for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
1247         {
1248                 if (ServerInstance->Modules->Load(adding->c_str()))
1249                 {
1250                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH LOADED MODULE: %s",adding->c_str());
1251                         if (user)
1252                                 user->WriteNumeric(RPL_LOADEDMODULE, "%s %s :Module %s successfully loaded.",user->nick.c_str(), adding->c_str(), adding->c_str());
1253                         else
1254                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully loaded.", adding->c_str());
1255                 }
1256                 else
1257                 {
1258                         if (user)
1259                                 user->WriteNumeric(ERR_CANTLOADMODULE, "%s %s :Failed to load module %s: %s",user->nick.c_str(), adding->c_str(), adding->c_str(), ServerInstance->Modules->LastError().c_str());
1260                         else
1261                                 ServerInstance->SNO->WriteGlobalSno('a', "Failed to load module %s: %s", adding->c_str(), ServerInstance->Modules->LastError().c_str());
1262                 }
1263         }
1264
1265         if (user)
1266                 user->WriteServ("NOTICE %s :*** Successfully rehashed server.", user->nick.c_str());
1267         else
1268                 ServerInstance->SNO->WriteGlobalSno('a', "*** Successfully rehashed server.");
1269 }
1270
1271 bool ServerConfig::LoadConf(FILE* &conf, const char* filename, bool allowexeinc)
1272 {
1273         std::string line;
1274         char ch;
1275         long linenumber = 1;
1276         long last_successful_parse = 1;
1277         bool in_tag;
1278         bool in_quote;
1279         bool in_comment;
1280         int character_count = 0;
1281
1282         in_tag = false;
1283         in_quote = false;
1284         in_comment = false;
1285
1286         ServerInstance->Logs->Log("CONFIG", DEBUG, "Reading %s", filename);
1287
1288         /* Check if the file open failed first */
1289         if (!conf)
1290         {
1291                 errstr << "LoadConf: Couldn't open config file: " << filename << std::endl;
1292                 return false;
1293         }
1294
1295         for (unsigned int t = 0; t < include_stack.size(); t++)
1296         {
1297                 if (std::string(filename) == include_stack[t])
1298                 {
1299                         errstr << "File " << filename << " is included recursively (looped inclusion)." << std::endl;
1300                         return false;
1301                 }
1302         }
1303
1304         /* It's not already included, add it to the list of files we've loaded */
1305         include_stack.push_back(filename);
1306
1307         /* Start reading characters... */
1308         while ((ch = fgetc(conf)) != EOF)
1309         {
1310                 /*
1311                  * Fix for moronic windows issue spotted by Adremelech.
1312                  * Some windows editors save text files as utf-16, which is
1313                  * a total pain in the ass to parse. Users should save in the
1314                  * right config format! If we ever see a file where the first
1315                  * byte is 0xFF or 0xFE, or the second is 0xFF or 0xFE, then
1316                  * this is most likely a utf-16 file. Bail out and insult user.
1317                  */
1318                 if ((character_count++ < 2) && (ch == '\xFF' || ch == '\xFE'))
1319                 {
1320                         errstr << "File " << filename << " cannot be read, as it is encoded in braindead UTF-16. Save your file as plain ASCII!" << std::endl;
1321                         return false;
1322                 }
1323
1324                 /*
1325                  * Here we try and get individual tags on separate lines,
1326                  * this would be so easy if we just made people format
1327                  * their config files like that, but they don't so...
1328                  * We check for a '<' and then know the line is over when
1329                  * we get a '>' not inside quotes. If we find two '<' and
1330                  * no '>' then die with an error.
1331                  */
1332
1333                 if ((ch == '#') && !in_quote)
1334                         in_comment = true;
1335
1336                 switch (ch)
1337                 {
1338                         case '\n':
1339                                 if (in_quote)
1340                                         line += '\n';
1341                                 linenumber++;
1342                         case '\r':
1343                                 if (!in_quote)
1344                                         in_comment = false;
1345                         case '\0':
1346                                 continue;
1347                         case '\t':
1348                                 ch = ' ';
1349                 }
1350
1351                 if(in_comment)
1352                         continue;
1353
1354                 /* XXX: Added by Brain, May 1st 2006 - Escaping of characters.
1355                  * Note that this WILL NOT usually allow insertion of newlines,
1356                  * because a newline is two characters long. Use it primarily to
1357                  * insert the " symbol.
1358                  *
1359                  * Note that this also involves a further check when parsing the line,
1360                  * which can be found below.
1361                  */
1362                 if ((ch == '\\') && (in_quote) && (in_tag))
1363                 {
1364                         line += ch;
1365                         char real_character;
1366                         if (!feof(conf))
1367                         {
1368                                 real_character = fgetc(conf);
1369                                 if (real_character == 'n')
1370                                         real_character = '\n';
1371                                 line += real_character;
1372                                 continue;
1373                         }
1374                         else
1375                         {
1376                                 errstr << "End of file after a \\, what did you want to escape?: " << filename << ":" << linenumber << std::endl;
1377                                 return false;
1378                         }
1379                 }
1380
1381                 if (ch != '\r')
1382                         line += ch;
1383
1384                 if ((ch != '<') && (!in_tag) && (!in_comment) && (ch > ' ') && (ch != 9))
1385                 {
1386                         errstr << "You have stray characters beyond the tag which starts at " << filename << ":" << last_successful_parse << std::endl;
1387                         return false;
1388                 }
1389
1390                 if (ch == '<')
1391                 {
1392                         if (in_tag)
1393                         {
1394                                 if (!in_quote)
1395                                 {
1396                                         errstr << "The tag at location " << filename << ":" << last_successful_parse << " was valid, but there is an error in the tag which comes after it. You are possibly missing a \" or >. Please check this." << std::endl;
1397                                         return false;
1398                                 }
1399                         }
1400                         else
1401                         {
1402                                 if (in_quote)
1403                                 {
1404                                         errstr << "Parser error: Inside a quote but not within the last valid tag, which was opened at: " << filename << ":" << last_successful_parse << std::endl;
1405                                         return false;
1406                                 }
1407                                 else
1408                                 {
1409                                         // errstr << "Opening new config tag on line " << linenumber << std::endl;
1410                                         in_tag = true;
1411                                 }
1412                         }
1413                 }
1414                 else if (ch == '"')
1415                 {
1416                         if (in_tag)
1417                         {
1418                                 if (in_quote)
1419                                 {
1420                                         // errstr << "Closing quote in config tag on line " << linenumber << std::endl;
1421                                         in_quote = false;
1422                                 }
1423                                 else
1424                                 {
1425                                         // errstr << "Opening quote in config tag on line " << linenumber << std::endl;
1426                                         in_quote = true;
1427                                 }
1428                         }
1429                         else
1430                         {
1431                                 if (in_quote)
1432                                 {
1433                                         errstr << "The tag immediately after the one at " << filename << ":" << last_successful_parse << " has a missing closing \" symbol. Please check this." << std::endl;
1434                                 }
1435                                 else
1436                                 {
1437                                         errstr << "You have opened a quote (\") beyond the tag at " << filename << ":" << last_successful_parse << " without opening a new tag. Please check this." << std::endl;
1438                                 }
1439                         }
1440                 }
1441                 else if (ch == '>')
1442                 {
1443                         if (!in_quote)
1444                         {
1445                                 if (in_tag)
1446                                 {
1447                                         // errstr << "Closing config tag on line " << linenumber << std::endl;
1448                                         in_tag = false;
1449
1450                                         /*
1451                                          * If this finds an <include> then ParseLine can simply call
1452                                          * LoadConf() and load the included config into the same ConfigDataHash
1453                                          */
1454                                         long bl = linenumber;
1455                                         if (!this->ParseLine(filename, line, linenumber, allowexeinc))
1456                                                 return false;
1457                                         last_successful_parse = linenumber;
1458
1459                                         linenumber = bl;
1460
1461                                         line.clear();
1462                                 }
1463                                 else
1464                                 {
1465                                         errstr << "You forgot to close the tag which comes immediately after the one at " << filename << ":" << last_successful_parse << std::endl;
1466                                         return false;
1467                                 }
1468                         }
1469                 }
1470         }
1471
1472         /* 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 */
1473         if (in_comment || in_quote)
1474         {
1475                 errstr << "Reached end of file whilst still inside a quoted section or tag. This is most likely an error or there \
1476                         is a newline missing from the end of the file: " << filename << ":" << linenumber << std::endl;
1477         }
1478
1479         return true;
1480 }
1481
1482
1483 bool ServerConfig::LoadConf(FILE* &conf, const std::string &filename, bool allowexeinc)
1484 {
1485         return this->LoadConf(conf, filename.c_str(), allowexeinc);
1486 }
1487
1488 bool ServerConfig::ParseLine(const std::string &filename, std::string &line, long &linenumber, bool allowexeinc)
1489 {
1490         std::string tagname;
1491         std::string current_key;
1492         std::string current_value;
1493         KeyValList results;
1494         char last_char = 0;
1495         bool got_name;
1496         bool got_key;
1497         bool in_quote;
1498
1499         got_name = got_key = in_quote = false;
1500
1501         for(std::string::iterator c = line.begin(); c != line.end(); c++)
1502         {
1503                 if (!got_name)
1504                 {
1505                         /* We don't know the tag name yet. */
1506
1507                         if (*c != ' ')
1508                         {
1509                                 if (*c != '<')
1510                                 {
1511                                         if ((*c >= 'a' && *c <= 'z') || (*c >= 'A' && *c <='Z') || (*c >= '0' && *c <= '9') || *c == '_')
1512                                                 tagname += *c;
1513                                         else
1514                                         {
1515                                                 errstr << "Invalid character in value name of tag: '" << *c << "' in value '" << tagname << "' in filename: " << filename << ":" << linenumber << std::endl;
1516                                                 return false;
1517                                         }
1518                                 }
1519                         }
1520                         else
1521                         {
1522                                 /* We got to a space, we should have the tagname now. */
1523                                 if(tagname.length())
1524                                 {
1525                                         got_name = true;
1526                                 }
1527                         }
1528                 }
1529                 else
1530                 {
1531                         /* We have the tag name */
1532                         if (!got_key)
1533                         {
1534                                 /* We're still reading the key name */
1535                                 if ((*c != '=') && (*c != '>'))
1536                                 {
1537                                         if (*c != ' ')
1538                                         {
1539                                                 if ((*c >= 'a' && *c <= 'z') || (*c >= 'A' && *c <='Z') || (*c >= '0' && *c <= '9') || *c == '_')
1540                                                         current_key += *c;
1541                                                 else
1542                                                 {
1543                                                         errstr << "Invalid character in key: '" << *c << "' in key '" << current_key << "' in filename: " << filename << ":" << linenumber << std::endl;
1544                                                         return false;
1545                                                 }
1546                                         }
1547                                 }
1548                                 else
1549                                 {
1550                                         /* We got an '=', end of the key name. */
1551                                         got_key = true;
1552                                 }
1553                         }
1554                         else
1555                         {
1556                                 /* We have the key name, now we're looking for quotes and the value */
1557
1558                                 /* Correctly handle escaped characters here.
1559                                  * See the XXX'ed section above.
1560                                  */
1561                                 if ((*c == '\\') && (in_quote))
1562                                 {
1563                                         c++;
1564                                         if (*c == 'n')
1565                                                 current_value += '\n';
1566                                         else
1567                                                 current_value += *c;
1568                                         continue;
1569                                 }
1570                                 else if ((*c == '\\') && (!in_quote))
1571                                 {
1572                                         errstr << "You can't have an escape sequence outside of a quoted section: " << filename << ":" << linenumber << std::endl;
1573                                         return false;
1574                                 }
1575                                 else if ((*c == '\n') && (in_quote))
1576                                 {
1577                                         /* Got a 'real' \n, treat it as part of the value */
1578                                         current_value += '\n';
1579                                         continue;
1580                                 }
1581                                 else if ((*c == '\r') && (in_quote))
1582                                 {
1583                                         /* Got a \r, drop it */
1584                                         continue;
1585                                 }
1586
1587                                 if (*c == '"')
1588                                 {
1589                                         if (!in_quote)
1590                                         {
1591                                                 /* We're not already in a quote. */
1592                                                 in_quote = true;
1593                                         }
1594                                         else
1595                                         {
1596                                                 /* Leaving the quotes, we have the current value */
1597                                                 results.push_back(KeyVal(current_key, current_value));
1598
1599                                                 // std::cout << "<" << tagname << ":" << current_key << "> " << current_value << std::endl;
1600
1601                                                 in_quote = false;
1602                                                 got_key = false;
1603
1604                                                 if ((tagname == "include") && (current_key == "file"))
1605                                                 {
1606                                                         if (!this->DoInclude(current_value, allowexeinc))
1607                                                                 return false;
1608                                                 }
1609                                                 else if ((tagname == "include") && (current_key == "executable"))
1610                                                 {
1611                                                         if (!allowexeinc)
1612                                                         {
1613                                                                 errstr << "Executable includes are not allowed to use <include:executable>\n"
1614                                                                         "This could be an attempt to execute commands from a malicious remote include.\n"
1615                                                                         "If you need multiple levels of remote include, create a script to assemble the "
1616                                                                         "contents locally or include files using <include:file>\n";
1617                                                                 return false;
1618                                                         }
1619
1620                                                         /* Pipe an executable and use its stdout as config data */
1621                                                         if (!this->DoPipe(current_value))
1622                                                                 return false;
1623                                                 }
1624
1625                                                 current_key.clear();
1626                                                 current_value.clear();
1627                                         }
1628                                 }
1629                                 else
1630                                 {
1631                                         if (in_quote)
1632                                         {
1633                                                 last_char = *c;
1634                                                 current_value += *c;
1635                                         }
1636                                 }
1637                         }
1638                 }
1639         }
1640
1641         /* Finished parsing the tag, add it to the config hash */
1642         config_data.insert(std::pair<std::string, KeyValList > (tagname, results));
1643
1644         return true;
1645 }
1646
1647 bool ServerConfig::DoPipe(const std::string &file)
1648 {
1649         FILE* conf = popen(file.c_str(), "r");
1650         bool ret = false;
1651
1652         if (conf)
1653         {
1654                 ret = LoadConf(conf, file.c_str(), false);
1655                 pclose(conf);
1656         }
1657         else
1658                 errstr << "Couldn't execute: " << file << std::endl;
1659
1660         return ret;
1661 }
1662
1663 bool ServerConfig::StartsWithWindowsDriveLetter(const std::string &path)
1664 {
1665         return (path.length() > 2 && isalpha(path[0]) && path[1] == ':');
1666 }
1667
1668 bool ServerConfig::DoInclude(const std::string &file, bool allowexeinc)
1669 {
1670         FILE* conf = fopen(file.c_str(), "r");
1671         bool ret = false;
1672
1673         if (conf)
1674         {
1675                 ret = LoadConf(conf, file, allowexeinc);
1676                 fclose(conf);
1677         }
1678         else
1679                 errstr << "Couldn't open config file: " << file << std::endl;
1680
1681         return ret;
1682 }
1683
1684 bool ServerConfig::ConfValue(const char* tag, const char* var, int index, char* result, int length, bool allow_linefeeds)
1685 {
1686         return ConfValue(tag, var, "", index, result, length, allow_linefeeds);
1687 }
1688
1689 bool ServerConfig::ConfValue(const char* tag, const char* var, const char* default_value, int index, char* result, int length, bool allow_linefeeds)
1690 {
1691         std::string value;
1692         bool r = ConfValue(std::string(tag), std::string(var), std::string(default_value), index, value, allow_linefeeds);
1693         strlcpy(result, value.c_str(), length);
1694         return r;
1695 }
1696
1697 bool ServerConfig::ConfValue(const std::string &tag, const std::string &var, int index, std::string &result, bool allow_linefeeds)
1698 {
1699         return ConfValue(tag, var, "", index, result, allow_linefeeds);
1700 }
1701
1702 bool ServerConfig::ConfValue(const std::string &tag, const std::string &var, const std::string &default_value, int index, std::string &result, bool allow_linefeeds)
1703 {
1704         ConfigDataHash::size_type pos = index;
1705         if (pos < config_data.count(tag))
1706         {
1707                 ConfigDataHash::iterator iter = config_data.find(tag);
1708
1709                 for(int i = 0; i < index; i++)
1710                         iter++;
1711
1712                 for(KeyValList::iterator j = iter->second.begin(); j != iter->second.end(); j++)
1713                 {
1714                         if(j->first == var)
1715                         {
1716                                 if ((!allow_linefeeds) && (j->second.find('\n') != std::string::npos))
1717                                 {
1718                                         ServerInstance->Logs->Log("CONFIG",DEFAULT, "Value of <" + tag + ":" + var+ "> contains a linefeed, and linefeeds in this value are not permitted -- stripped to spaces.");
1719                                         for (std::string::iterator n = j->second.begin(); n != j->second.end(); n++)
1720                                                 if (*n == '\n')
1721                                                         *n = ' ';
1722                                 }
1723                                 else
1724                                 {
1725                                         result = j->second;
1726                                         return true;
1727                                 }
1728                         }
1729                 }
1730                 if (!default_value.empty())
1731                 {
1732                         result = default_value;
1733                         return true;
1734                 }
1735         }
1736         else if (pos == 0)
1737         {
1738                 if (!default_value.empty())
1739                 {
1740                         result = default_value;
1741                         return true;
1742                 }
1743         }
1744         return false;
1745 }
1746
1747 bool ServerConfig::ConfValueInteger(const char* tag, const char* var, int index, int &result)
1748 {
1749         return ConfValueInteger(std::string(tag), std::string(var), "", index, result);
1750 }
1751
1752 bool ServerConfig::ConfValueInteger(const char* tag, const char* var, const char* default_value, int index, int &result)
1753 {
1754         return ConfValueInteger(std::string(tag), std::string(var), std::string(default_value), index, result);
1755 }
1756
1757 bool ServerConfig::ConfValueInteger(const std::string &tag, const std::string &var, int index, int &result)
1758 {
1759         return ConfValueInteger(tag, var, "", index, result);
1760 }
1761
1762 bool ServerConfig::ConfValueInteger(const std::string &tag, const std::string &var, const std::string &default_value, int index, int &result)
1763 {
1764         std::string value;
1765         std::istringstream stream;
1766         bool r = ConfValue(tag, var, default_value, index, value);
1767         stream.str(value);
1768         if(!(stream >> result))
1769                 return false;
1770         else
1771         {
1772                 if (!value.empty())
1773                 {
1774                         if (value.substr(0,2) == "0x")
1775                         {
1776                                 char* endptr;
1777
1778                                 value.erase(0,2);
1779                                 result = strtol(value.c_str(), &endptr, 16);
1780
1781                                 /* No digits found */
1782                                 if (endptr == value.c_str())
1783                                         return false;
1784                         }
1785                         else
1786                         {
1787                                 char denominator = *(value.end() - 1);
1788                                 switch (toupper(denominator))
1789                                 {
1790                                         case 'K':
1791                                                 /* Kilobytes -> bytes */
1792                                                 result = result * 1024;
1793                                         break;
1794                                         case 'M':
1795                                                 /* Megabytes -> bytes */
1796                                                 result = result * 1024 * 1024;
1797                                         break;
1798                                         case 'G':
1799                                                 /* Gigabytes -> bytes */
1800                                                 result = result * 1024 * 1024 * 1024;
1801                                         break;
1802                                 }
1803                         }
1804                 }
1805         }
1806         return r;
1807 }
1808
1809
1810 bool ServerConfig::ConfValueBool(const char* tag, const char* var, int index)
1811 {
1812         return ConfValueBool(std::string(tag), std::string(var), "", index);
1813 }
1814
1815 bool ServerConfig::ConfValueBool(const char* tag, const char* var, const char* default_value, int index)
1816 {
1817         return ConfValueBool(std::string(tag), std::string(var), std::string(default_value), index);
1818 }
1819
1820 bool ServerConfig::ConfValueBool(const std::string &tag, const std::string &var, int index)
1821 {
1822         return ConfValueBool(tag, var, "", index);
1823 }
1824
1825 bool ServerConfig::ConfValueBool(const std::string &tag, const std::string &var, const std::string &default_value, int index)
1826 {
1827         std::string result;
1828         if(!ConfValue(tag, var, default_value, index, result))
1829                 return false;
1830
1831         return ((result == "yes") || (result == "true") || (result == "1"));
1832 }
1833
1834 int ServerConfig::ConfValueEnum(const char* tag)
1835 {
1836         return config_data.count(tag);
1837 }
1838
1839 int ServerConfig::ConfValueEnum(const std::string &tag)
1840 {
1841         return config_data.count(tag);
1842 }
1843
1844 int ServerConfig::ConfVarEnum(const char* tag, int index)
1845 {
1846         return ConfVarEnum(std::string(tag), index);
1847 }
1848
1849 int ServerConfig::ConfVarEnum(const std::string &tag, int index)
1850 {
1851         ConfigDataHash::size_type pos = index;
1852
1853         if (pos < config_data.count(tag))
1854         {
1855                 ConfigDataHash::const_iterator iter = config_data.find(tag);
1856
1857                 for(int i = 0; i < index; i++)
1858                         iter++;
1859
1860                 return iter->second.size();
1861         }
1862
1863         return 0;
1864 }
1865
1866 /** Read the contents of a file located by `fname' into a file_cache pointed at by `F'.
1867  */
1868 bool ServerConfig::ReadFile(file_cache &F, const char* fname)
1869 {
1870         if (!fname || !*fname)
1871                 return false;
1872
1873         FILE* file = NULL;
1874         char linebuf[MAXBUF];
1875
1876         F.clear();
1877
1878         if (!FileExists(fname))
1879                 return false;
1880         file = fopen(fname, "r");
1881
1882         if (file)
1883         {
1884                 while (!feof(file))
1885                 {
1886                         if (fgets(linebuf, sizeof(linebuf), file))
1887                                 linebuf[strlen(linebuf)-1] = 0;
1888                         else
1889                                 *linebuf = 0;
1890
1891                         F.push_back(*linebuf ? linebuf : " ");
1892                 }
1893
1894                 fclose(file);
1895         }
1896         else
1897                 return false;
1898
1899         return true;
1900 }
1901
1902 bool ServerConfig::FileExists(const char* file)
1903 {
1904         struct stat sb;
1905         if (stat(file, &sb) == -1)
1906                 return false;
1907
1908         if ((sb.st_mode & S_IFDIR) > 0)
1909                 return false;
1910
1911         FILE *input = fopen(file, "r");
1912         if (input == NULL)
1913                 return false;
1914         else
1915         {
1916                 fclose(input);
1917                 return true;
1918         }
1919 }
1920
1921 const char* ServerConfig::CleanFilename(const char* name)
1922 {
1923         const char* p = name + strlen(name);
1924         while ((p != name) && (*p != '/') && (*p != '\\')) p--;
1925         return (p != name ? ++p : p);
1926 }
1927
1928
1929 std::string ServerConfig::GetSID()
1930 {
1931         return sid;
1932 }
1933
1934 ValueItem::ValueItem(int value)
1935 {
1936         std::stringstream n;
1937         n << value;
1938         v = n.str();
1939 }
1940
1941 ValueItem::ValueItem(bool value)
1942 {
1943         std::stringstream n;
1944         n << value;
1945         v = n.str();
1946 }
1947
1948 void ValueItem::Set(const std::string& value)
1949 {
1950         v = value;
1951 }
1952
1953 void ValueItem::Set(int value)
1954 {
1955         std::stringstream n;
1956         n << value;
1957         v = n.str();
1958 }
1959
1960 int ValueItem::GetInteger()
1961 {
1962         if (v.empty())
1963                 return 0;
1964         return atoi(v.c_str());
1965 }
1966
1967 const char* ValueItem::GetString() const
1968 {
1969         return v.c_str();
1970 }
1971
1972 bool ValueItem::GetBool()
1973 {
1974         return (GetInteger() || v == "yes" || v == "true");
1975 }
1976
1977
1978 void ConfigReaderThread::Run()
1979 {
1980         Config = new ServerConfig;
1981         Config->Read();
1982         done = true;
1983 }
1984
1985 void ConfigReaderThread::Finish()
1986 {
1987         ServerConfig* old = ServerInstance->Config;
1988         ServerInstance->Logs->Log("CONFIG",DEBUG,"Switching to new configuration...");
1989         ServerInstance->Logs->CloseLogs();
1990         ServerInstance->Config = this->Config;
1991         ServerInstance->Logs->OpenFileLogs();
1992         Config->Apply(old, TheUserUID);
1993
1994         if (Config->valid)
1995         {
1996                 /*
1997                  * Apply the changed configuration from the rehash.
1998                  *
1999                  * XXX: The order of these is IMPORTANT, do not reorder them without testing
2000                  * thoroughly!!!
2001                  */
2002                 ServerInstance->XLines->CheckELines();
2003                 ServerInstance->XLines->CheckELines();
2004                 ServerInstance->XLines->ApplyLines();
2005                 ServerInstance->Res->Rehash();
2006                 ServerInstance->ResetMaxBans();
2007                 Config->ApplyDisabledCommands(Config->DisabledCommands);
2008                 User* user = TheUserUID.empty() ? ServerInstance->FindNick(TheUserUID) : NULL;
2009                 FOREACH_MOD(I_OnRehash, OnRehash(user));
2010                 ServerInstance->BuildISupport();
2011
2012                 delete old;
2013         }
2014         else
2015         {
2016                 // whoops, abort!
2017                 ServerInstance->Logs->CloseLogs();
2018                 ServerInstance->Config = old;
2019                 ServerInstance->Logs->OpenFileLogs();
2020                 delete this->Config;
2021         }
2022 }