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(InspIRCd* Instance) : ServerInstance(Instance)
  36 {
  37         *sid = *ServerName = *Network = *ServerDesc = *AdminName = '\0';
  38         *HideWhoisServer = *AdminEmail = *AdminNick = *diepass = *restartpass = *FixedQuit = *HideKillsServer = '\0';
  39         *DefaultModes = *CustomVersion = *motd = *rules = *PrefixQuit = *DieValue = *DNSServer = '\0';
  40         *UserStats = *DisabledCommands = *SuffixQuit = '\0';
  41         WhoWasGroupSize = WhoWasMaxGroups = WhoWasMaxKeep = 0;
  42         log_file = NULL;
  43         NoUserDns = forcedebug = OperSpyWhois = nofork = HideBans = HideSplits = UndernetMsgPrefix = false;
  44         CycleHosts = writelog = AllowHalfop = InvBypassModes = true;
  45         dns_timeout = DieDelay = 5;
  46         MaxTargets = 20;
  47         NetBufferSize = 10240;
  48         SoftLimit = Instance->SE->GetMaxFds();
  49         MaxConn = SOMAXCONN;
  50         MaxWhoResults = 0;
  51         debugging = 0;
  52         MaxChans = 20;
  53         OperMaxChans = 30;
  54         c_ipv4_range = 32;
  55         c_ipv6_range = 128;
  56 }
  57
  58 void ServerConfig::Update005()
  59 {
  60         std::stringstream out(data005);
  61         std::string token;
  62         std::string line5;
  63         int token_counter = 0;
  64         isupport.clear();
  65         while (out >> token)
  66         {
  67                 line5 = line5 + token + " ";
  68                 token_counter++;
  69                 if (token_counter >= 13)
  70                 {
  71                         char buf[MAXBUF];
  72                         snprintf(buf, MAXBUF, "%s:are supported by this server", line5.c_str());
  73                         isupport.push_back(buf);
  74                         line5.clear();
  75                         token_counter = 0;
  76                 }
  77         }
  78         if (!line5.empty())
  79         {
  80                 char buf[MAXBUF];
  81                 snprintf(buf, MAXBUF, "%s:are supported by this server", line5.c_str());
  82                 isupport.push_back(buf);
  83         }
  84 }
  85
  86 void ServerConfig::Send005(User* user)
  87 {
  88         for (std::vector<std::string>::iterator line = ServerInstance->Config->isupport.begin(); line != ServerInstance->Config->isupport.end(); line++)
  89                 user->WriteNumeric(RPL_ISUPPORT, "%s %s", user->nick.c_str(), line->c_str());
  90 }
  91
  92 bool ServerConfig::CheckOnce(const char* tag)
  93 {
  94         int count = ConfValueEnum(tag);
  95
  96         if (count > 1)
  97                 throw CoreException("You have more than one <"+std::string(tag)+"> tag, this is not permitted.");
  98         if (count < 1)
  99                 throw CoreException("You have not defined a <"+std::string(tag)+"> tag, this is required.");
 100         return true;
 101 }
 102
 103 static void ValidateNoSpaces(const char* p, const std::string &tag, const std::string &val)
 104 {
 105         for (const char* ptr = p; *ptr; ++ptr)
 106         {
 107                 if (*ptr == ' ')
 108                         throw CoreException("The value of <"+tag+":"+val+"> cannot contain spaces");
 109         }
 110 }
 111
 112 /* 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,
 113  * even in strerror(errno). They just return 'yes' or 'no' to an address without such detail as to whats WRONG with the address.
 114  * Because ircd users arent as technical as they used to be (;)) we are going to give more of a useful error message.
 115  */
 116 static void ValidateIP(const char* p, const std::string &tag, const std::string &val, bool wild)
 117 {
 118         int num_dots = 0;
 119         int num_seps = 0;
 120         int not_numbers = false;
 121         int not_hex = false;
 122
 123         if (*p)
 124         {
 125                 if (*p == '.')
 126                         throw CoreException("The value of <"+tag+":"+val+"> is not an IP address");
 127
 128                 for (const char* ptr = p; *ptr; ++ptr)
 129                 {
 130                         if (wild && (*ptr == '*' || *ptr == '?' || *ptr == '/'))
 131                                 continue;
 132
 133                         if (*ptr != ':' && *ptr != '.')
 134                         {
 135                                 if (*ptr < '0' || *ptr > '9')
 136                                         not_numbers = true;
 137                                 if ((*ptr < '0' || *ptr > '9') && (toupper(*ptr) < 'A' || toupper(*ptr) > 'F'))
 138                                         not_hex = true;
 139                         }
 140                         switch (*ptr)
 141                         {
 142                                 case ' ':
 143                                         throw CoreException("The value of <"+tag+":"+val+"> is not an IP address");
 144                                 case '.':
 145                                         num_dots++;
 146                                 break;
 147                                 case ':':
 148                                         num_seps++;
 149                                 break;
 150                         }
 151                 }
 152
 153                 if (num_dots > 3)
 154                         throw CoreException("The value of <"+tag+":"+val+"> is an IPv4 address with too many fields!");
 155
 156                 if (num_seps > 8)
 157                         throw CoreException("The value of <"+tag+":"+val+"> is an IPv6 address with too many fields!");
 158
 159                 if (num_seps == 0 && num_dots < 3 && !wild)
 160                         throw CoreException("The value of <"+tag+":"+val+"> looks to be a malformed IPv4 address");
 161
 162                 if (num_seps == 0 && num_dots == 3 && not_numbers)
 163                         throw CoreException("The value of <"+tag+":"+val+"> contains non-numeric characters in an IPv4 address");
 164
 165                 if (num_seps != 0 && not_hex)
 166                         throw CoreException("The value of <"+tag+":"+val+"> contains non-hexdecimal characters in an IPv6 address");
 167
 168                 if (num_seps != 0 && num_dots != 3 && num_dots != 0 && !wild)
 169                         throw CoreException("The value of <"+tag+":"+val+"> is a malformed IPv6 4in6 address");
 170         }
 171 }
 172
 173 static void ValidateHostname(const char* p, const std::string &tag, const std::string &val)
 174 {
 175         int num_dots = 0;
 176         if (*p)
 177         {
 178                 if (*p == '.')
 179                         throw CoreException("The value of <"+tag+":"+val+"> is not a valid hostname");
 180                 for (const char* ptr = p; *ptr; ++ptr)
 181                 {
 182                         switch (*ptr)
 183                         {
 184                                 case ' ':
 185                                         throw CoreException("The value of <"+tag+":"+val+"> is not a valid hostname");
 186                                 case '.':
 187                                         num_dots++;
 188                                 break;
 189                         }
 190                 }
 191                 if (num_dots == 0)
 192                         throw CoreException("The value of <"+tag+":"+val+"> is not a valid hostname");
 193         }
 194 }
 195
 196 // Specialized validators
 197
 198 static bool ValidateMaxTargets(ServerConfig* conf, const char*, const char*, ValueItem &data)
 199 {
 200         if ((data.GetInteger() < 1) || (data.GetInteger() > 31))
 201         {
 202                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"WARNING: <security:maxtargets> value is greater than 31 or less than 1, set to 20.");
 203                 data.Set(20);
 204         }
 205         return true;
 206 }
 207
 208 static bool ValidateSoftLimit(ServerConfig* conf, const char*, const char*, ValueItem &data)
 209 {
 210         if ((data.GetInteger() < 1) || (data.GetInteger() > conf->GetInstance()->SE->GetMaxFds()))
 211         {
 212                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"WARNING: <performance:softlimit> value is greater than %d or less than 0, set to %d.",conf->GetInstance()->SE->GetMaxFds(),conf->GetInstance()->SE->GetMaxFds());
 213                 data.Set(conf->GetInstance()->SE->GetMaxFds());
 214         }
 215         return true;
 216 }
 217
 218 static bool ValidateMaxConn(ServerConfig* conf, const char*, const char*, ValueItem &data)
 219 {
 220         if (data.GetInteger() > SOMAXCONN)
 221                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"WARNING: <performance:somaxconn> value may be higher than the system-defined SOMAXCONN value!");
 222         return true;
 223 }
 224
 225 bool ServerConfig::ApplyDisabledCommands(const char* data)
 226 {
 227         std::stringstream dcmds(data);
 228         std::string thiscmd;
 229
 230         /* Enable everything first */
 231         for (Commandtable::iterator x = ServerInstance->Parser->cmdlist.begin(); x != ServerInstance->Parser->cmdlist.end(); x++)
 232                 x->second->Disable(false);
 233
 234         /* Now disable all the ones which the user wants disabled */
 235         while (dcmds >> thiscmd)
 236         {
 237                 Commandtable::iterator cm = ServerInstance->Parser->cmdlist.find(thiscmd);
 238                 if (cm != ServerInstance->Parser->cmdlist.end())
 239                 {
 240                         cm->second->Disable(true);
 241                 }
 242         }
 243         return true;
 244 }
 245
 246 static bool ValidateDisabledUModes(ServerConfig* conf, const char*, const char*, ValueItem &data)
 247 {
 248         memset(conf->DisabledUModes, 0, sizeof(conf->DisabledUModes));
 249         for (const unsigned char* p = (const unsigned char*)data.GetString(); *p; ++p)
 250         {
 251                 if (*p < 'A' || *p > ('A' + 64)) throw CoreException(std::string("Invalid usermode ")+(char)*p+" was found.");
 252                 conf->DisabledUModes[*p - 'A'] = 1;
 253         }
 254         return true;
 255 }
 256
 257 static bool ValidateDisabledCModes(ServerConfig* conf, const char*, const char*, ValueItem &data)
 258 {
 259         memset(conf->DisabledCModes, 0, sizeof(conf->DisabledCModes));
 260         for (const unsigned char* p = (const unsigned char*)data.GetString(); *p; ++p)
 261         {
 262                 if (*p < 'A' || *p > ('A' + 64)) throw CoreException(std::string("Invalid chanmode ")+(char)*p+" was found.");
 263                 conf->DisabledCModes[*p - 'A'] = 1;
 264         }
 265         return true;
 266 }
 267
 268 #ifdef WINDOWS
 269 // Note: the windows validator is in win32wrapper.cpp
 270 bool ValidateDnsServer(ServerConfig* conf, const char*, const char*, ValueItem &data);
 271 #else
 272 static bool ValidateDnsServer(ServerConfig* conf, const char*, const char*, ValueItem &data)
 273 {
 274         if (!*(data.GetString()))
 275         {
 276                 std::string nameserver;
 277                 // attempt to look up their nameserver from /etc/resolv.conf
 278                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"WARNING: <dns:server> not defined, attempting to find working server in /etc/resolv.conf...");
 279                 std::ifstream resolv("/etc/resolv.conf");
 280                 bool found_server = false;
 281
 282                 if (resolv.is_open())
 283                 {
 284                         while (resolv >> nameserver)
 285                         {
 286                                 if ((nameserver == "nameserver") && (!found_server))
 287                                 {
 288                                         resolv >> nameserver;
 289                                         data.Set(nameserver.c_str());
 290                                         found_server = true;
 291                                         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"<dns:server> set to '%s' as first resolver in /etc/resolv.conf.",nameserver.c_str());
 292                                 }
 293                         }
 294
 295                         if (!found_server)
 296                         {
 297                                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"/etc/resolv.conf contains no viable nameserver entries! Defaulting to nameserver '127.0.0.1'!");
 298                                 data.Set("127.0.0.1");
 299                         }
 300                 }
 301                 else
 302                 {
 303                         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"/etc/resolv.conf can't be opened! Defaulting to nameserver '127.0.0.1'!");
 304                         data.Set("127.0.0.1");
 305                 }
 306         }
 307         return true;
 308 }
 309 #endif
 310
 311 static bool ValidateServerName(ServerConfig* conf, const char*, const char*, ValueItem &data)
 312 {
 313         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"Validating server name");
 314         /* If we already have a servername, and they changed it, we should throw an exception. */
 315         if (!strchr(data.GetString(), '.'))
 316         {
 317                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"WARNING: <server:name> '%s' is not a fully-qualified domain name. Changed to '%s.'",
 318                         data.GetString(),data.GetString());
 319                 std::string moo = data.GetValue();
 320                 data.Set(moo.append("."));
 321         }
 322         ValidateHostname(data.GetString(), "server", "name");
 323         return true;
 324 }
 325
 326 static bool ValidateNetBufferSize(ServerConfig* conf, const char*, const char*, ValueItem &data)
 327 {
 328         // 65534 not 65535 because of null terminator
 329         if ((!data.GetInteger()) || (data.GetInteger() > 65534) || (data.GetInteger() < 1024))
 330         {
 331                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 332                 data.Set(10240);
 333         }
 334         return true;
 335 }
 336
 337 static bool ValidateMaxWho(ServerConfig* conf, const char*, const char*, ValueItem &data)
 338 {
 339         if ((data.GetInteger() > 65535) || (data.GetInteger() < 1))
 340         {
 341                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"<performance:maxwho> size out of range, setting to default of 128.");
 342                 data.Set(128);
 343         }
 344         return true;
 345 }
 346
 347 static bool ValidateHalfOp(ServerConfig* conf, const char*, const char*, ValueItem &data)
 348 {
 349         ModeHandler* mh = conf->GetInstance()->Modes->FindMode('h', MODETYPE_CHANNEL);
 350         if (data.GetBool() && !mh) {
 351                 conf->GetInstance()->Logs->Log("CONFIG", DEFAULT, "Enabling halfop mode.");
 352                 mh = new ModeChannelHalfOp(conf->GetInstance());
 353                 conf->GetInstance()->Modes->AddMode(mh);
 354         } else if (!data.GetBool() && mh) {
 355                 conf->GetInstance()->Logs->Log("CONFIG", DEFAULT, "Disabling halfop mode.");
 356                 conf->GetInstance()->Modes->DelMode(mh);
 357                 delete mh;
 358         }
 359         return true;
 360 }
 361
 362 static bool ValidateMotd(ServerConfig* conf, const char*, const char*, ValueItem &data)
 363 {
 364         conf->ReadFile(conf->MOTD, data.GetString());
 365         return true;
 366 }
 367
 368 static bool ValidateNotEmpty(ServerConfig*, const char* tag, const char* val, ValueItem &data)
 369 {
 370         if (data.GetValue().empty())
 371                 throw CoreException(std::string("The value for <")+tag+":"+val+"> cannot be empty!");
 372         return true;
 373 }
 374
 375 static bool ValidateRules(ServerConfig* conf, const char*, const char*, ValueItem &data)
 376 {
 377         conf->ReadFile(conf->RULES, data.GetString());
 378         return true;
 379 }
 380
 381 static bool ValidateModeLists(ServerConfig* conf, const char*, const char*, ValueItem &data)
 382 {
 383         memset(conf->HideModeLists, 0, sizeof(conf->HideModeLists));
 384         for (const unsigned char* x = (const unsigned char*)data.GetString(); *x; ++x)
 385                 conf->HideModeLists[*x] = true;
 386         return true;
 387 }
 388
 389 static bool ValidateExemptChanOps(ServerConfig* conf, const char*, const char*, ValueItem &data)
 390 {
 391         memset(conf->ExemptChanOps, 0, sizeof(conf->ExemptChanOps));
 392         for (const unsigned char* x = (const unsigned char*)data.GetString(); *x; ++x)
 393                 conf->ExemptChanOps[*x] = true;
 394         return true;
 395 }
 396
 397 static bool ValidateInvite(ServerConfig* conf, const char*, const char*, ValueItem &data)
 398 {
 399         const std::string& v = data.GetValue();
 400
 401         if (v == "ops")
 402                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_OPS;
 403         else if (v == "all")
 404                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_ALL;
 405         else if (v == "dynamic")
 406                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_DYNAMIC;
 407         else
 408                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_NONE;
 409
 410         return true;
 411 }
 412
 413 static bool ValidateSID(ServerConfig* conf, const char*, const char*, ValueItem &data)
 414 {
 415         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"Validating server id");
 416
 417         const char *sid = data.GetString();
 418
 419         if (*sid && !conf->GetInstance()->IsSID(sid))
 420         {
 421                 throw CoreException(std::string(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.");
 422         }
 423
 424         strlcpy(conf->sid, sid, 5);
 425
 426         return true;
 427 }
 428
 429 static bool ValidateWhoWas(ServerConfig* conf, const char*, const char*, ValueItem &data)
 430 {
 431         conf->WhoWasMaxKeep = conf->GetInstance()->Duration(data.GetString());
 432
 433         if (conf->WhoWasGroupSize < 0)
 434                 conf->WhoWasGroupSize = 0;
 435
 436         if (conf->WhoWasMaxGroups < 0)
 437                 conf->WhoWasMaxGroups = 0;
 438
 439         if (conf->WhoWasMaxKeep < 3600)
 440         {
 441                 conf->WhoWasMaxKeep = 3600;
 442                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"WARNING: <whowas:maxkeep> value less than 3600, setting to default 3600");
 443         }
 444
 445         Command* whowas_command = conf->GetInstance()->Parser->GetHandler("WHOWAS");
 446         if (whowas_command)
 447         {
 448                 std::deque<classbase*> params;
 449                 whowas_command->HandleInternal(WHOWAS_PRUNE, params);
 450         }
 451
 452         return true;
 453 }
 454
 455 /* Callback called to process a single <uline> tag
 456  */
 457 static bool DoULine(ServerConfig* conf, const char*, const char**, ValueList &values, int*)
 458 {
 459         const char* server = values[0].GetString();
 460         const bool silent = values[1].GetBool();
 461         conf->ulines[server] = silent;
 462         return true;
 463 }
 464
 465 /* Callback called to process a single <banlist> tag
 466  */
 467 static bool DoMaxBans(ServerConfig* conf, const char*, const char**, ValueList &values, int*)
 468 {
 469         const char* channel = values[0].GetString();
 470         int limit = values[1].GetInteger();
 471         conf->maxbans[channel] = limit;
 472         return true;
 473 }
 474
 475 static bool DoZLine(ServerConfig* conf, const char* tag, const char** entries, ValueList &values, int* types)
 476 {
 477         const char* reason = values[0].GetString();
 478         const char* ipmask = values[1].GetString();
 479
 480         ZLine* zl = new ZLine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, ipmask);
 481         if (!conf->GetInstance()->XLines->AddLine(zl, NULL))
 482                 delete zl;
 483
 484         return true;
 485 }
 486
 487 static bool DoQLine(ServerConfig* conf, const char* tag, const char** entries, ValueList &values, int* types)
 488 {
 489         const char* reason = values[0].GetString();
 490         const char* nick = values[1].GetString();
 491
 492         QLine* ql = new QLine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, nick);
 493         if (!conf->GetInstance()->XLines->AddLine(ql, NULL))
 494                 delete ql;
 495
 496         return true;
 497 }
 498
 499 static bool DoKLine(ServerConfig* conf, const char* tag, const char** entries, ValueList &values, int* types)
 500 {
 501         const char* reason = values[0].GetString();
 502         const char* host = values[1].GetString();
 503
 504         XLineManager* xlm = conf->GetInstance()->XLines;
 505
 506         IdentHostPair ih = xlm->IdentSplit(host);
 507
 508         KLine* kl = new KLine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, ih.first.c_str(), ih.second.c_str());
 509         if (!xlm->AddLine(kl, NULL))
 510                 delete kl;
 511         return true;
 512 }
 513
 514 static bool DoELine(ServerConfig* conf, const char* tag, const char** entries, ValueList &values, int* types)
 515 {
 516         const char* reason = values[0].GetString();
 517         const char* host = values[1].GetString();
 518
 519         XLineManager* xlm = conf->GetInstance()->XLines;
 520
 521         IdentHostPair ih = xlm->IdentSplit(host);
 522
 523         ELine* el = new ELine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, ih.first.c_str(), ih.second.c_str());
 524         if (!xlm->AddLine(el, NULL))
 525                 delete el;
 526         return true;
 527 }
 528
 529 static bool DoType(ServerConfig* conf, const char*, const char**, ValueList &values, int*)
 530 {
 531         const char* TypeName = values[0].GetString();
 532         const char* Classes = values[1].GetString();
 533
 534         conf->opertypes[TypeName] = std::string(Classes);
 535         return true;
 536 }
 537
 538 static bool DoClass(ServerConfig* conf, const char* tag, const char**, ValueList &values, int*)
 539 {
 540         const char* ClassName = values[0].GetString();
 541         const char* CommandList = values[1].GetString();
 542         const char* UModeList = values[2].GetString();
 543         const char* CModeList = values[3].GetString();
 544         const char *PrivsList = values[4].GetString();
 545
 546         for (const char* c = UModeList; *c; ++c)
 547         {
 548                 if ((*c < 'A' || *c > 'z') && *c != '*')
 549                 {
 550                         throw CoreException("Character " + std::string(1, *c) + " is not a valid mode in <class:usermodes>");
 551                 }
 552         }
 553         for (const char* c = CModeList; *c; ++c)
 554         {
 555                 if ((*c < 'A' || *c > 'z') && *c != '*')
 556                 {
 557                         throw CoreException("Character " + std::string(1, *c) + " is not a valid mode in <class:chanmodes>");
 558                 }
 559         }
 560
 561         conf->operclass[ClassName].commandlist = strnewdup(CommandList);
 562         conf->operclass[ClassName].umodelist = strnewdup(UModeList);
 563         conf->operclass[ClassName].cmodelist = strnewdup(CModeList);
 564         conf->operclass[ClassName].privs = strnewdup(PrivsList);
 565         return true;
 566 }
 567
 568 void ServerConfig::CrossCheckOperClassType()
 569 {
 570         for (int i = 0; i < ConfValueEnum("type"); ++i)
 571         {
 572                 char item[MAXBUF], classn[MAXBUF], classes[MAXBUF];
 573                 std::string classname;
 574                 ConfValue("type", "classes", "", i, classes, MAXBUF, false);
 575                 irc::spacesepstream str(classes);
 576                 ConfValue("type", "name", "", i, item, MAXBUF, false);
 577                 while (str.GetToken(classname))
 578                 {
 579                         std::string lost;
 580                         bool foundclass = false;
 581                         for (int j = 0; j < ConfValueEnum("class"); ++j)
 582                         {
 583                                 ConfValue("class", "name", "", j, classn, MAXBUF, false);
 584                                 if (!strcmp(classn, classname.c_str()))
 585                                 {
 586                                         foundclass = true;
 587                                         break;
 588                                 }
 589                         }
 590                         if (!foundclass)
 591                         {
 592                                 char msg[MAXBUF];
 593                                 snprintf(msg, MAXBUF, " Warning: Oper type '%s' has a missing class named '%s', this does nothing!\n",
 594                                         item, classname.c_str());
 595                                 throw CoreException(msg);
 596                         }
 597                 }
 598         }
 599 }
 600
 601 void ServerConfig::CrossCheckConnectBlocks(ServerConfig* current)
 602 {
 603         typedef std::map<std::string, ConnectClass*> ClassMap;
 604         ClassMap oldBlocksByMask;
 605         if (current)
 606         {
 607                 for(ClassVector::iterator i = current->Classes.begin(); i != current->Classes.end(); ++i)
 608                 {
 609                         ConnectClass* c = *i;
 610                         std::string typeMask = (c->type == CC_ALLOW) ? "a" : "d";
 611                         typeMask += c->host;
 612                         oldBlocksByMask[typeMask] = c;
 613                 }
 614         }
 615
 616         int block_count = ConfValueEnum("connect");
 617         ClassMap newBlocksByMask;
 618         Classes.resize(block_count, NULL);
 619         std::map<std::string, int> names;
 620
 621         bool try_again = true;
 622         for(int tries=0; try_again && tries < block_count + 1; tries++)
 623         {
 624                 try_again = false;
 625                 for(int i=0; i < block_count; i++)
 626                 {
 627                         if (Classes[i])
 628                                 continue;
 629
 630                         ConnectClass* parent = NULL;
 631                         std::string parentName;
 632                         if (ConfValue("connect", "parent", i, parentName, false))
 633                         {
 634                                 std::map<std::string,int>::iterator parentIter = names.find(parentName);
 635                                 if (parentIter == names.end())
 636                                 {
 637                                         try_again = true;
 638                                         // couldn't find parent this time. If it's the last time, we'll never find it.
 639                                         if (tries == block_count)
 640                                                 throw CoreException("Could not find parent connect class \"" + parentName + "\" for connect block " + ConvToStr(i));
 641                                         continue;
 642                                 }
 643                                 parent = Classes[parentIter->second];
 644                         }
 645
 646                         std::string name;
 647                         if (ConfValue("connect", "name", i, name, false))
 648                         {
 649                                 if (names.find(name) != names.end())
 650                                         throw CoreException("Two connect classes with name \"" + name + "\" defined!");
 651                                 names[name] = i;
 652                         }
 653
 654                         std::string mask, typeMask;
 655                         char type;
 656
 657                         if (ConfValue("connect", "allow", i, mask, false))
 658                         {
 659                                 type = CC_ALLOW;
 660                                 typeMask = 'a' + mask;
 661                         }
 662                         else if (ConfValue("connect", "deny", i, mask, false))
 663                         {
 664                                 type = CC_DENY;
 665                                 typeMask = 'd' + mask;
 666                         }
 667                         else
 668                         {
 669                                 throw CoreException("Connect class must have an allow or deny mask (#" + ConvToStr(i) + ")");
 670                         }
 671                         ClassMap::iterator dupMask = newBlocksByMask.find(typeMask);
 672                         if (dupMask != newBlocksByMask.end())
 673                                 throw CoreException("Two connect classes cannot have the same mask (" + mask + ")");
 674
 675                         ConnectClass* me = parent ?
 676                                 new ConnectClass(type, mask, *parent) :
 677                                 new ConnectClass(type, mask);
 678
 679                         if (!name.empty())
 680                                 me->name = name;
 681
 682                         std::string tmpv;
 683                         if (ConfValue("connect", "password", i, tmpv, false))
 684                                 me->pass= tmpv;
 685                         if (ConfValue("connect", "hash", i, tmpv, false))
 686                                 me->hash = tmpv;
 687                         if (ConfValue("connect", "timeout", i, tmpv, false))
 688                                 me->registration_timeout = atol(tmpv.c_str());
 689                         if (ConfValue("connect", "pingfreq", i, tmpv, false))
 690                                 me->pingtime = atol(tmpv.c_str());
 691                         if (ConfValue("connect", "sendq", i, tmpv, false))
 692                                 me->sendqmax = atol(tmpv.c_str());
 693                         if (ConfValue("connect", "recvq", i, tmpv, false))
 694                                 me->recvqmax = atol(tmpv.c_str());
 695                         if (ConfValue("connect", "localmax", i, tmpv, false))
 696                                 me->maxlocal = atol(tmpv.c_str());
 697                         if (ConfValue("connect", "globalmax", i, tmpv, false))
 698                                 me->maxglobal = atol(tmpv.c_str());
 699                         if (ConfValue("connect", "port", i, tmpv, false))
 700                                 me->port = atol(tmpv.c_str());
 701                         if (ConfValue("connect", "maxchans", i, tmpv, false))
 702                                 me->maxchans = atol(tmpv.c_str());
 703                         if (ConfValue("connect", "limit", i, tmpv, false))
 704                                 me->limit = atol(tmpv.c_str());
 705
 706                         ClassMap::iterator oldMask = oldBlocksByMask.find(typeMask);
 707                         if (oldMask != oldBlocksByMask.end())
 708                         {
 709                                 oldBlocksByMask.erase(oldMask);
 710                                 ConnectClass* old = oldMask->second;
 711                                 old->Update(me);
 712                                 delete me;
 713                                 me = old;
 714                         }
 715                         newBlocksByMask[typeMask] = me;
 716                         Classes[i] = me;
 717                 }
 718         }
 719
 720         for(ClassMap::iterator toRemove = oldBlocksByMask.begin(); toRemove != oldBlocksByMask.end(); toRemove++)
 721         {
 722                 removed_classes.push_back(toRemove->second);
 723         }
 724 }
 725
 726
 727 static const Deprecated ChangedConfig[] = {
 728         {"options", "hidelinks",                "has been moved to <security:hidelinks> as of 1.2a3"},
 729         {"options", "hidewhois",                "has been moved to <security:hidewhois> as of 1.2a3"},
 730         {"options", "userstats",                "has been moved to <security:userstats> as of 1.2a3"},
 731         {"options", "customversion",    "has been moved to <security:customversion> as of 1.2a3"},
 732         {"options", "hidesplits",               "has been moved to <security:hidesplits> as of 1.2a3"},
 733         {"options", "hidebans",         "has been moved to <security:hidebans> as of 1.2a3"},
 734         {"options", "hidekills",                "has been moved to <security:hidekills> as of 1.2a3"},
 735         {"options", "operspywhois",             "has been moved to <security:operspywhois> as of 1.2a3"},
 736         {"options", "announceinvites",  "has been moved to <security:announceinvites> as of 1.2a3"},
 737         {"options", "hidemodes",                "has been moved to <security:hidemodes> as of 1.2a3"},
 738         {"options", "maxtargets",               "has been moved to <security:maxtargets> as of 1.2a3"},
 739         {"options",     "nouserdns",            "has been moved to <performance:nouserdns> as of 1.2a3"},
 740         {"options",     "maxwho",               "has been moved to <performance:maxwho> as of 1.2a3"},
 741         {"options",     "softlimit",            "has been moved to <performance:softlimit> as of 1.2a3"},
 742         {"options", "somaxconn",                "has been moved to <performance:somaxconn> as of 1.2a3"},
 743         {"options", "netbuffersize",    "has been moved to <performance:netbuffersize> as of 1.2a3"},
 744         {"options", "maxwho",           "has been moved to <performance:maxwho> as of 1.2a3"},
 745         {"options",     "loglevel",             "1.2 does not use the loglevel value. Please define <log> tags instead."},
 746         {"die",     "value",            "has always been deprecated"},
 747 };
 748
 749 /* These tags can occur ONCE or not at all */
 750 static const InitialConfig Values[] = {
 751         {"performance", "softlimit",    "0",                    new ValueContainerUInt (&ServerConfig::SoftLimit),              DT_INTEGER,  ValidateSoftLimit},
 752         {"performance", "somaxconn",    SOMAXCONN_S,            new ValueContainerInt  (&ServerConfig::MaxConn),                DT_INTEGER,  ValidateMaxConn},
 753         {"options",     "moronbanner",  "You're banned!",       new ValueContainerChar (&ServerConfig::MoronBanner),            DT_CHARPTR,  NULL},
 754         {"server",      "name",         "",                     new ValueContainerChar (&ServerConfig::ServerName),             DT_HOSTNAME, ValidateServerName},
 755         {"server",      "description",  "Configure Me",         new ValueContainerChar (&ServerConfig::ServerDesc),             DT_CHARPTR,  NULL},
 756         {"server",      "network",      "Network",              new ValueContainerChar (&ServerConfig::Network),                        DT_NOSPACES, NULL},
 757         {"server",      "id",           "",                     new ValueContainerChar (&ServerConfig::sid),                    DT_CHARPTR,  ValidateSID},
 758         {"admin",       "name",         "",                     new ValueContainerChar (&ServerConfig::AdminName),              DT_CHARPTR,  NULL},
 759         {"admin",       "email",        "Mis@configu.red",      new ValueContainerChar (&ServerConfig::AdminEmail),             DT_CHARPTR,  NULL},
 760         {"admin",       "nick",         "Misconfigured",        new ValueContainerChar (&ServerConfig::AdminNick),              DT_CHARPTR,  NULL},
 761         {"files",       "motd",         "",                     new ValueContainerChar (&ServerConfig::motd),                   DT_CHARPTR,  ValidateMotd},
 762         {"files",       "rules",        "",                     new ValueContainerChar (&ServerConfig::rules),                  DT_CHARPTR,  ValidateRules},
 763         {"power",       "diepass",      "",                     new ValueContainerChar (&ServerConfig::diepass),                        DT_CHARPTR,  ValidateNotEmpty},
 764         {"power",       "pause",        "",                     new ValueContainerInt  (&ServerConfig::DieDelay),               DT_INTEGER,  NULL},
 765         {"power",       "hash",         "",                     new ValueContainerChar (&ServerConfig::powerhash),              DT_CHARPTR,  NULL},
 766         {"power",       "restartpass",  "",                     new ValueContainerChar (&ServerConfig::restartpass),            DT_CHARPTR,  ValidateNotEmpty},
 767         {"options",     "prefixquit",   "",                     new ValueContainerChar (&ServerConfig::PrefixQuit),             DT_CHARPTR,  NULL},
 768         {"options",     "suffixquit",   "",                     new ValueContainerChar (&ServerConfig::SuffixQuit),             DT_CHARPTR,  NULL},
 769         {"options",     "fixedquit",    "",                     new ValueContainerChar (&ServerConfig::FixedQuit),              DT_CHARPTR,  NULL},
 770         {"options",     "prefixpart",   "",                     new ValueContainerChar (&ServerConfig::PrefixPart),             DT_CHARPTR,  NULL},
 771         {"options",     "suffixpart",   "",                     new ValueContainerChar (&ServerConfig::SuffixPart),             DT_CHARPTR,  NULL},
 772         {"options",     "fixedpart",    "",                     new ValueContainerChar (&ServerConfig::FixedPart),              DT_CHARPTR,  NULL},
 773         {"performance", "netbuffersize","10240",                new ValueContainerInt  (&ServerConfig::NetBufferSize),          DT_INTEGER,  ValidateNetBufferSize},
 774         {"performance", "maxwho",       "128",                  new ValueContainerInt  (&ServerConfig::MaxWhoResults),          DT_INTEGER,  ValidateMaxWho},
 775         {"options",     "allowhalfop",  "0",                    new ValueContainerBool (&ServerConfig::AllowHalfop),            DT_BOOLEAN,  ValidateHalfOp},
 776         {"dns",         "server",       "",                     new ValueContainerChar (&ServerConfig::DNSServer),              DT_IPADDRESS,ValidateDnsServer},
 777         {"dns",         "timeout",      "5",                    new ValueContainerInt  (&ServerConfig::dns_timeout),            DT_INTEGER,  NULL},
 778         {"options",     "moduledir",    MOD_PATH,               new ValueContainerString (&ServerConfig::ModPath),                      DT_CHARPTR,  NULL},
 779         {"disabled",    "commands",     "",                     new ValueContainerChar (&ServerConfig::DisabledCommands),       DT_CHARPTR,  NULL},
 780         {"disabled",    "usermodes",    "",                     NULL, DT_NOTHING,  ValidateDisabledUModes},
 781         {"disabled",    "chanmodes",    "",                     NULL, DT_NOTHING,  ValidateDisabledCModes},
 782         {"disabled",    "fakenonexistant",      "0",            new ValueContainerBool (&ServerConfig::DisabledDontExist),              DT_BOOLEAN,  NULL},
 783
 784         {"security",            "runasuser",    "",             new ValueContainerChar(&ServerConfig::SetUser),                         DT_CHARPTR, NULL},
 785         {"security",            "runasgroup",   "",             new ValueContainerChar(&ServerConfig::SetGroup),                                DT_CHARPTR, NULL},
 786         {"security",    "userstats",    "",                     new ValueContainerChar (&ServerConfig::UserStats),              DT_CHARPTR,  NULL},
 787         {"security",    "customversion","",                     new ValueContainerChar (&ServerConfig::CustomVersion),          DT_CHARPTR,  NULL},
 788         {"security",    "hidesplits",   "0",                    new ValueContainerBool (&ServerConfig::HideSplits),             DT_BOOLEAN,  NULL},
 789         {"security",    "hidebans",     "0",                    new ValueContainerBool (&ServerConfig::HideBans),               DT_BOOLEAN,  NULL},
 790         {"security",    "hidewhois",    "",                     new ValueContainerChar (&ServerConfig::HideWhoisServer),                DT_NOSPACES, NULL},
 791         {"security",    "hidekills",    "",                     new ValueContainerChar (&ServerConfig::HideKillsServer),                DT_NOSPACES,  NULL},
 792         {"security",    "operspywhois", "0",                    new ValueContainerBool (&ServerConfig::OperSpyWhois),           DT_BOOLEAN,  NULL},
 793         {"security",    "restrictbannedusers",  "1",            new ValueContainerBool (&ServerConfig::RestrictBannedUsers),            DT_BOOLEAN,  NULL},
 794         {"security",    "genericoper",  "0",                    new ValueContainerBool (&ServerConfig::GenericOper),            DT_BOOLEAN,  NULL},
 795         {"performance", "nouserdns",    "0",                    new ValueContainerBool (&ServerConfig::NoUserDns),              DT_BOOLEAN,  NULL},
 796         {"options",     "syntaxhints",  "0",                    new ValueContainerBool (&ServerConfig::SyntaxHints),            DT_BOOLEAN,  NULL},
 797         {"options",     "cyclehosts",   "0",                    new ValueContainerBool (&ServerConfig::CycleHosts),             DT_BOOLEAN,  NULL},
 798         {"options",     "ircumsgprefix","0",                    new ValueContainerBool (&ServerConfig::UndernetMsgPrefix),      DT_BOOLEAN,  NULL},
 799         {"security",    "announceinvites", "1",                 NULL, DT_NOTHING,  ValidateInvite},
 800         {"options",     "hostintopic",  "1",                    new ValueContainerBool (&ServerConfig::FullHostInTopic),        DT_BOOLEAN,  NULL},
 801         {"security",    "hidemodes",    "",                     NULL, DT_NOTHING,  ValidateModeLists},
 802         {"options",     "exemptchanops","",                     NULL, DT_NOTHING,  ValidateExemptChanOps},
 803         {"security",    "maxtargets",   "20",                   new ValueContainerUInt (&ServerConfig::MaxTargets),             DT_INTEGER,  ValidateMaxTargets},
 804         {"options",     "defaultmodes", "nt",                   new ValueContainerChar (&ServerConfig::DefaultModes),           DT_CHARPTR,  NULL},
 805         {"pid",         "file",         "",                     new ValueContainerString (&ServerConfig::PID),                  DT_CHARPTR,  NULL},
 806         {"whowas",      "groupsize",    "10",                   new ValueContainerInt  (&ServerConfig::WhoWasGroupSize),        DT_INTEGER,  NULL},
 807         {"whowas",      "maxgroups",    "10240",                new ValueContainerInt  (&ServerConfig::WhoWasMaxGroups),        DT_INTEGER,  NULL},
 808         {"whowas",      "maxkeep",      "3600",                 NULL, DT_NOTHING,  ValidateWhoWas},
 809         {"die",         "value",        "",                     new ValueContainerChar (&ServerConfig::DieValue),               DT_CHARPTR,  NULL},
 810         {"channels",    "users",        "20",                   new ValueContainerUInt (&ServerConfig::MaxChans),               DT_INTEGER,  NULL},
 811         {"channels",    "opers",        "60",                   new ValueContainerUInt (&ServerConfig::OperMaxChans),           DT_INTEGER,  NULL},
 812         {"cidr",        "ipv4clone",    "32",                   new ValueContainerInt (&ServerConfig::c_ipv4_range),            DT_INTEGER,  NULL},
 813         {"cidr",        "ipv6clone",    "128",                  new ValueContainerInt (&ServerConfig::c_ipv6_range),            DT_INTEGER,  NULL},
 814         {"limits",      "maxnick",      "32",                   new ValueContainerLimit (&ServerLimits::NickMax),               DT_LIMIT,  NULL},
 815         {"limits",      "maxchan",      "64",                   new ValueContainerLimit (&ServerLimits::ChanMax),               DT_LIMIT,  NULL},
 816         {"limits",      "maxmodes",     "20",                   new ValueContainerLimit (&ServerLimits::MaxModes),              DT_LIMIT,  NULL},
 817         {"limits",      "maxident",     "11",                   new ValueContainerLimit (&ServerLimits::IdentMax),              DT_LIMIT,  NULL},
 818         {"limits",      "maxquit",      "255",                  new ValueContainerLimit (&ServerLimits::MaxQuit),               DT_LIMIT,  NULL},
 819         {"limits",      "maxtopic",     "307",                  new ValueContainerLimit (&ServerLimits::MaxTopic),              DT_LIMIT,  NULL},
 820         {"limits",      "maxkick",      "255",                  new ValueContainerLimit (&ServerLimits::MaxKick),               DT_LIMIT,  NULL},
 821         {"limits",      "maxgecos",     "128",                  new ValueContainerLimit (&ServerLimits::MaxGecos),              DT_LIMIT,  NULL},
 822         {"limits",      "maxaway",      "200",                  new ValueContainerLimit (&ServerLimits::MaxAway),               DT_LIMIT,  NULL},
 823         {"options",     "invitebypassmodes",    "1",                    new ValueContainerBool (&ServerConfig::InvBypassModes),         DT_BOOLEAN,  NULL},
 824 };
 825
 826 /* These tags can occur multiple times, and therefore they have special code to read them
 827  * which is different to the code for reading the singular tags listed above.
 828  */
 829 MultiConfig MultiValues[] = {
 830
 831         {"connect",
 832                         {"allow",       "deny",         "password",     "timeout",      "pingfreq",
 833                         "sendq",        "recvq",        "localmax",     "globalmax",    "port",
 834                         "name",         "parent",       "maxchans",     "limit",        "hash",
 835                         NULL},
 836                         {"",            "",                             "",                     "",                     "120",
 837                          "",            "",                             "3",            "3",            "0",
 838                          "",            "",                             "0",        "0",                "",
 839                          NULL},
 840                         {DT_IPADDRESS|DT_ALLOW_WILD, DT_IPADDRESS|DT_ALLOW_WILD, DT_CHARPTR,    DT_INTEGER,     DT_INTEGER,
 841                         DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,
 842                         DT_NOSPACES,    DT_NOSPACES,    DT_INTEGER,     DT_INTEGER,     DT_CHARPTR},
 843                         NULL,},
 844
 845         {"uline",
 846                         {"server",      "silent",       NULL},
 847                         {"",            "0",            NULL},
 848                         {DT_HOSTNAME,   DT_BOOLEAN},
 849                         DoULine},
 850
 851         {"banlist",
 852                         {"chan",        "limit",        NULL},
 853                         {"",            "",             NULL},
 854                         {DT_CHARPTR,    DT_INTEGER},
 855                         DoMaxBans},
 856
 857         {"module",
 858                         {"name",        NULL},
 859                         {"",            NULL},
 860                         {DT_CHARPTR},
 861                         NULL},
 862
 863         {"badip",
 864                         {"reason",      "ipmask",       NULL},
 865                         {"No reason",   "",             NULL},
 866                         {DT_CHARPTR,    DT_IPADDRESS|DT_ALLOW_WILD},
 867                         DoZLine},
 868
 869         {"badnick",
 870                         {"reason",      "nick",         NULL},
 871                         {"No reason",   "",             NULL},
 872                         {DT_CHARPTR,    DT_CHARPTR},
 873                         DoQLine},
 874
 875         {"badhost",
 876                         {"reason",      "host",         NULL},
 877                         {"No reason",   "",             NULL},
 878                         {DT_CHARPTR,    DT_CHARPTR},
 879                         DoKLine},
 880
 881         {"exception",
 882                         {"reason",      "host",         NULL},
 883                         {"No reason",   "",             NULL},
 884                         {DT_CHARPTR,    DT_CHARPTR},
 885                         DoELine},
 886
 887         {"type",
 888                         {"name",        "classes",      NULL},
 889                         {"",            "",             NULL},
 890                         {DT_NOSPACES,   DT_CHARPTR},
 891                         DoType},
 892
 893         {"class",
 894                         {"name",        "commands",     "usermodes",    "chanmodes",    "privs",        NULL},
 895                         {"",            "",                             "",                             "",                     "",                     NULL},
 896                         {DT_NOSPACES,   DT_CHARPTR,     DT_CHARPTR,     DT_CHARPTR, DT_CHARPTR},
 897                         DoClass},
 898 };
 899
 900 /* These tags MUST occur and must ONLY occur once in the config file */
 901 static const char* Once[] = { "server", "admin", "files", "power", "options" };
 902
 903 // WARNING: it is not safe to use most of the codebase in this function, as it
 904 // will run in the config reader thread
 905 void ServerConfig::Read()
 906 {
 907         /* Load and parse the config file, if there are any errors then explode */
 908
 909         if (!this->DoInclude(ServerInstance->ConfigFileName))
 910         {
 911                 valid = false;
 912                 return;
 913         }
 914 }
 915
 916 void ServerConfig::Apply(ServerConfig* old, const std::string &useruid)
 917 {
 918         valid = true;
 919         /* std::ostringstream::clear() does not clear the string itself, only the error flags. */
 920         errstr.clear();
 921         errstr.str().clear();
 922         include_stack.clear();
 923
 924         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 925         try
 926         {
 927                 /* Check we dont have more than one of singular tags, or any of them missing
 928                  */
 929                 for (int Index = 0; Index * sizeof(*Once) < sizeof(Once); Index++)
 930                         CheckOnce(Once[Index]);
 931
 932                 for (int Index = 0; Index * sizeof(Deprecated) < sizeof(ChangedConfig); Index++)
 933                 {
 934                         char item[MAXBUF];
 935                         *item = 0;
 936                         if (ConfValue(ChangedConfig[Index].tag, ChangedConfig[Index].value, "", 0, item, MAXBUF, true) || *item)
 937                                 throw CoreException(std::string("Your configuration contains a deprecated value: <") + ChangedConfig[Index].tag + ":" + ChangedConfig[Index].value + "> - " + ChangedConfig[Index].reason);
 938                 }
 939
 940                 /* Read the values of all the tags which occur once or not at all, and call their callbacks.
 941                  */
 942                 for (int Index = 0; Index * sizeof(*Values) < sizeof(Values); ++Index)
 943                 {
 944                         char item[MAXBUF];
 945                         int dt = Values[Index].datatype;
 946                         bool allow_newlines = ((dt & DT_ALLOW_NEWLINE) > 0);
 947                         bool allow_wild = ((dt & DT_ALLOW_WILD) > 0);
 948                         dt &= ~DT_ALLOW_NEWLINE;
 949                         dt &= ~DT_ALLOW_WILD;
 950
 951                         ConfValue(Values[Index].tag, Values[Index].value, Values[Index].default_value, 0, item, MAXBUF, allow_newlines);
 952                         ValueItem vi(item);
 953
 954                         if (Values[Index].validation_function && !Values[Index].validation_function(this, Values[Index].tag, Values[Index].value, vi))
 955                                 throw CoreException("One or more values in your configuration file failed to validate. Please see your ircd.log for more information.");
 956
 957                         switch (dt)
 958                         {
 959                                 case DT_NOSPACES:
 960                                 {
 961                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 962                                         ValidateNoSpaces(vi.GetString(), Values[Index].tag, Values[Index].value);
 963                                         vcc->Set(this, vi);
 964                                 }
 965                                 break;
 966                                 case DT_HOSTNAME:
 967                                 {
 968                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 969                                         ValidateHostname(vi.GetString(), Values[Index].tag, Values[Index].value);
 970                                         vcc->Set(this, vi);
 971                                 }
 972                                 break;
 973                                 case DT_IPADDRESS:
 974                                 {
 975                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 976                                         ValidateIP(vi.GetString(), Values[Index].tag, Values[Index].value, allow_wild);
 977                                         vcc->Set(this, vi);
 978                                 }
 979                                 break;
 980                                 case DT_CHANNEL:
 981                                 {
 982                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 983                                         if (*(vi.GetString()) && !ServerInstance->IsChannel(vi.GetString(), MAXBUF))
 984                                         {
 985                                                 throw CoreException("The value of <"+std::string(Values[Index].tag)+":"+Values[Index].value+"> is not a valid channel name");
 986                                         }
 987                                         vcc->Set(this, vi);
 988                                 }
 989                                 break;
 990                                 case DT_CHARPTR:
 991                                 {
 992                                         ValueContainerChar* vcc = dynamic_cast<ValueContainerChar*>(Values[Index].val);
 993                                         if (vcc)
 994                                                 vcc->Set(this, vi);
 995                                         ValueContainerString* vcs = dynamic_cast<ValueContainerString*>(Values[Index].val);
 996                                         if (vcs)
 997                                                 vcs->Set(this, vi.GetValue());
 998                                 }
 999                                 break;
1000                                 case DT_INTEGER:
1001                                 {
1002                                         int val = vi.GetInteger();
1003                                         ValueContainerInt* vci = (ValueContainerInt*)Values[Index].val;
1004                                         vci->Set(this, val);
1005                                 }
1006                                 break;
1007                                 case DT_LIMIT:
1008                                 {
1009                                         int val = vi.GetInteger();
1010                                         ValueContainerLimit* vci = (ValueContainerLimit*)Values[Index].val;
1011                                         vci->Set(this, val);
1012                                 }
1013                                 break;
1014                                 case DT_BOOLEAN:
1015                                 {
1016                                         bool val = vi.GetBool();
1017                                         ValueContainerBool* vcb = (ValueContainerBool*)Values[Index].val;
1018                                         vcb->Set(this, val);
1019                                 }
1020                                 break;
1021                         }
1022                 }
1023
1024                 /* Read the multiple-tag items (class tags, connect tags, etc)
1025                  * and call the callbacks associated with them. We have three
1026                  * callbacks for these, a 'start', 'item' and 'end' callback.
1027                  */
1028                 for (int Index = 0; Index * sizeof(MultiConfig) < sizeof(MultiValues); ++Index)
1029                 {
1030                         int number_of_tags = ConfValueEnum(MultiValues[Index].tag);
1031
1032                         for (int tagnum = 0; tagnum < number_of_tags; ++tagnum)
1033                         {
1034                                 ValueList vl;
1035                                 for (int valuenum = 0; (MultiValues[Index].items[valuenum]) && (valuenum < MAX_VALUES_PER_TAG); ++valuenum)
1036                                 {
1037                                         int dt = MultiValues[Index].datatype[valuenum];
1038                                         bool allow_newlines =  ((dt & DT_ALLOW_NEWLINE) > 0);
1039                                         bool allow_wild = ((dt & DT_ALLOW_WILD) > 0);
1040                                         dt &= ~DT_ALLOW_NEWLINE;
1041                                         dt &= ~DT_ALLOW_WILD;
1042
1043                                         switch (dt)
1044                                         {
1045                                                 case DT_NOSPACES:
1046                                                 {
1047                                                         char item[MAXBUF];
1048                                                         if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1049                                                                 vl.push_back(ValueItem(item));
1050                                                         else
1051                                                                 vl.push_back(ValueItem(""));
1052                                                         ValidateNoSpaces(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum]);
1053                                                 }
1054                                                 break;
1055                                                 case DT_HOSTNAME:
1056                                                 {
1057                                                         char item[MAXBUF];
1058                                                         if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1059                                                                 vl.push_back(ValueItem(item));
1060                                                         else
1061                                                                 vl.push_back(ValueItem(""));
1062                                                         ValidateHostname(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum]);
1063                                                 }
1064                                                 break;
1065                                                 case DT_IPADDRESS:
1066                                                 {
1067                                                         char item[MAXBUF];
1068                                                         if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1069                                                                 vl.push_back(ValueItem(item));
1070                                                         else
1071                                                                 vl.push_back(ValueItem(""));
1072                                                         ValidateIP(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum], allow_wild);
1073                                                 }
1074                                                 break;
1075                                                 case DT_CHANNEL:
1076                                                 {
1077                                                         char item[MAXBUF];
1078                                                         if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1079                                                                 vl.push_back(ValueItem(item));
1080                                                         else
1081                                                                 vl.push_back(ValueItem(""));
1082                                                         if (!ServerInstance->IsChannel(vl[vl.size()-1].GetString(), MAXBUF))
1083                                                                 throw CoreException("The value of <"+std::string(MultiValues[Index].tag)+":"+MultiValues[Index].items[valuenum]+"> number "+ConvToStr(tagnum + 1)+" is not a valid channel name");
1084                                                 }
1085                                                 break;
1086                                                 case DT_CHARPTR:
1087                                                 {
1088                                                         char item[MAXBUF];
1089                                                         if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1090                                                                 vl.push_back(ValueItem(item));
1091                                                         else
1092                                                                 vl.push_back(ValueItem(""));
1093                                                 }
1094                                                 break;
1095                                                 case DT_INTEGER:
1096                                                 {
1097                                                         int item = 0;
1098                                                         if (ConfValueInteger(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item))
1099                                                                 vl.push_back(ValueItem(item));
1100                                                         else
1101                                                                 vl.push_back(ValueItem(0));
1102                                                 }
1103                                                 break;
1104                                                 case DT_BOOLEAN:
1105                                                 {
1106                                                         bool item = ConfValueBool(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum);
1107                                                         vl.push_back(ValueItem(item));
1108                                                 }
1109                                                 break;
1110                                         }
1111                                 }
1112                                 if (MultiValues[Index].validation_function)
1113                                         MultiValues[Index].validation_function(this, MultiValues[Index].tag, MultiValues[Index].items, vl, MultiValues[Index].datatype);
1114                         }
1115                 }
1116
1117                 /* Finalise the limits, increment them all by one so that we can just put assign(str, 0, val)
1118                  * rather than assign(str, 0, val + 1)
1119                  */
1120                 Limits.Finalise();
1121
1122                 // Handle special items
1123                 CrossCheckOperClassType();
1124                 CrossCheckConnectBlocks(old);
1125         }
1126         catch (CoreException &ce)
1127         {
1128                 errstr << ce.GetReason();
1129                 valid = false;
1130         }
1131
1132         // write once here, to try it out and make sure its ok
1133         ServerInstance->WritePID(this->PID);
1134
1135         FailedPortList pl;
1136         ServerInstance->BindPorts(pl);
1137
1138         /*
1139          * These values can only be set on boot. Keep their old values. Do it before we send messages so we actually have a servername.
1140          */
1141         if (old)
1142         {
1143                 memcpy(this->ServerName, old->ServerName, sizeof(this->ServerName));
1144                 memcpy(this->sid, old->sid, sizeof(this->sid));
1145         }
1146
1147         if (pl.size())
1148         {
1149                 errstr << "Not all your client ports could be bound.\nThe following port(s) failed to bind:\n";
1150
1151                 int j = 1;
1152                 for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
1153                 {
1154                         char buf[MAXBUF];
1155                         snprintf(buf, MAXBUF, "%d.   Address: %s   Reason: %s\n", j, i->first.empty() ? "<all>" : i->first.c_str(), i->second.c_str());
1156                         errstr << buf;
1157                 }
1158         }
1159
1160         User* user = useruid.empty() ? NULL : ServerInstance->FindNick(useruid);
1161
1162         valid = errstr.str().empty();
1163         if (!valid)
1164                 ServerInstance->Logs->Log("CONFIG",DEFAULT, "There were errors in your configuration file:");
1165
1166         while (errstr.good())
1167         {
1168                 std::string line;
1169                 getline(errstr, line, '\n');
1170                 if (!line.empty())
1171                 {
1172                         if (user)
1173                                 user->WriteServ("NOTICE %s :*** %s", user->nick.c_str(), line.c_str());
1174                         else
1175                                 ServerInstance->SNO->WriteGlobalSno('a', line);
1176                 }
1177
1178                 if (!old)
1179                 {
1180                         // Starting up, so print it out so it's seen. XXX this is a bit of a hack.
1181                         printf("%s\n", line.c_str());
1182                 }
1183         }
1184
1185         errstr.clear();
1186         errstr.str(std::string());
1187
1188         /* No old configuration -> initial boot, nothing more to do here */
1189         if (!old)
1190         {
1191                 if (!valid)
1192                 {
1193                         ServerInstance->Exit(EXIT_STATUS_CONFIG);
1194                 }
1195
1196                 return;
1197         }
1198
1199         // If there were errors processing configuration, don't touch modules.
1200         if (!valid)
1201                 return;
1202
1203         ApplyModules(user);
1204         for (std::vector<ConnectClass*>::iterator i = removed_classes.begin(); i != removed_classes.end(); i++)
1205         {
1206                 ConnectClass* c = *i;
1207                 if (0 == --c->RefCount)
1208                         delete c;
1209         }
1210 }
1211
1212 void ServerConfig::ApplyModules(User* user)
1213 {
1214         const std::vector<std::string> v = ServerInstance->Modules->GetAllModuleNames(0);
1215         std::vector<std::string> added_modules;
1216         std::set<std::string> removed_modules(v.begin(), v.end());
1217
1218         int new_module_count = ConfValueEnum("module");
1219         for(int i=0; i < new_module_count; i++)
1220         {
1221                 std::string name;
1222                 if (ConfValue("module", "name", i, name, false))
1223                 {
1224                         // if this module is already loaded, the erase will succeed, so we need do nothing
1225                         // otherwise, we need to add the module (which will be done later)
1226                         if (removed_modules.erase(name) == 0)
1227                                 added_modules.push_back(name);
1228                 }
1229         }
1230
1231         for (std::set<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
1232         {
1233                 if (ServerInstance->Modules->Unload(removing->c_str()))
1234                 {
1235                         ServerInstance->SNO->WriteToSnoMask('a', "*** REHASH UNLOADED MODULE: %s",removing->c_str());
1236
1237                         if (user)
1238                                 user->WriteNumeric(RPL_UNLOADEDMODULE, "%s %s :Module %s successfully unloaded.",user->nick.c_str(), removing->c_str(), removing->c_str());
1239                         else
1240                                 ServerInstance->SNO->WriteToSnoMask('a', "Module %s successfully unloaded.", removing->c_str());
1241                 }
1242                 else
1243                 {
1244                         if (user)
1245                                 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());
1246                         else
1247                                  ServerInstance->SNO->WriteToSnoMask('a', "Failed to unload module %s: %s", removing->c_str(), ServerInstance->Modules->LastError().c_str());
1248                 }
1249         }
1250
1251         for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
1252         {
1253                 if (ServerInstance->Modules->Load(adding->c_str()))
1254                 {
1255                         ServerInstance->SNO->WriteToSnoMask('a', "*** REHASH LOADED MODULE: %s",adding->c_str());
1256                         if (user)
1257                                 user->WriteNumeric(RPL_LOADEDMODULE, "%s %s :Module %s successfully loaded.",user->nick.c_str(), adding->c_str(), adding->c_str());
1258                         else
1259                                 ServerInstance->SNO->WriteToSnoMask('a', "Module %s successfully loaded.", adding->c_str());
1260                 }
1261                 else
1262                 {
1263                         if (user)
1264                                 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());
1265                         else
1266                                 ServerInstance->SNO->WriteToSnoMask('a', "Failed to load module %s: %s", adding->c_str(), ServerInstance->Modules->LastError().c_str());
1267                 }
1268         }
1269
1270         if (user)
1271                 user->WriteServ("NOTICE %s :*** Successfully rehashed server.", user->nick.c_str());
1272         else
1273                 ServerInstance->SNO->WriteToSnoMask('a', "*** Successfully rehashed server.");
1274 }
1275
1276 bool ServerConfig::LoadConf(FILE* &conf, const char* filename)
1277 {
1278         std::string line;
1279         char ch;
1280         long linenumber = 1;
1281         long last_successful_parse = 1;
1282         bool in_tag;
1283         bool in_quote;
1284         bool in_comment;
1285         int character_count = 0;
1286
1287         in_tag = false;
1288         in_quote = false;
1289         in_comment = false;
1290
1291         ServerInstance->Logs->Log("CONFIG", DEBUG, "Reading %s", filename);
1292
1293         /* Check if the file open failed first */
1294         if (!conf)
1295         {
1296                 errstr << "LoadConf: Couldn't open config file: " << filename << std::endl;
1297                 return false;
1298         }
1299
1300         for (unsigned int t = 0; t < include_stack.size(); t++)
1301         {
1302                 if (std::string(filename) == include_stack[t])
1303                 {
1304                         errstr << "File " << filename << " is included recursively (looped inclusion)." << std::endl;
1305                         return false;
1306                 }
1307         }
1308
1309         /* It's not already included, add it to the list of files we've loaded */
1310         include_stack.push_back(filename);
1311
1312         /* Start reading characters... */
1313         while ((ch = fgetc(conf)) != EOF)
1314         {
1315                 /*
1316                  * Fix for moronic windows issue spotted by Adremelech.
1317                  * Some windows editors save text files as utf-16, which is
1318                  * a total pain in the ass to parse. Users should save in the
1319                  * right config format! If we ever see a file where the first
1320                  * byte is 0xFF or 0xFE, or the second is 0xFF or 0xFE, then
1321                  * this is most likely a utf-16 file. Bail out and insult user.
1322                  */
1323                 if ((character_count++ < 2) && (ch == '\xFF' || ch == '\xFE'))
1324                 {
1325                         errstr << "File " << filename << " cannot be read, as it is encoded in braindead UTF-16. Save your file as plain ASCII!" << std::endl;
1326                         return false;
1327                 }
1328
1329                 /*
1330                  * Here we try and get individual tags on separate lines,
1331                  * this would be so easy if we just made people format
1332                  * their config files like that, but they don't so...
1333                  * We check for a '<' and then know the line is over when
1334                  * we get a '>' not inside quotes. If we find two '<' and
1335                  * no '>' then die with an error.
1336                  */
1337
1338                 if ((ch == '#') && !in_quote)
1339                         in_comment = true;
1340
1341                 switch (ch)
1342                 {
1343                         case '\n':
1344                                 if (in_quote)
1345                                         line += '\n';
1346                                 linenumber++;
1347                         case '\r':
1348                                 if (!in_quote)
1349                                         in_comment = false;
1350                         case '\0':
1351                                 continue;
1352                         case '\t':
1353                                 ch = ' ';
1354                 }
1355
1356                 if(in_comment)
1357                         continue;
1358
1359                 /* XXX: Added by Brain, May 1st 2006 - Escaping of characters.
1360                  * Note that this WILL NOT usually allow insertion of newlines,
1361                  * because a newline is two characters long. Use it primarily to
1362                  * insert the " symbol.
1363                  *
1364                  * Note that this also involves a further check when parsing the line,
1365                  * which can be found below.
1366                  */
1367                 if ((ch == '\\') && (in_quote) && (in_tag))
1368                 {
1369                         line += ch;
1370                         char real_character;
1371                         if (!feof(conf))
1372                         {
1373                                 real_character = fgetc(conf);
1374                                 if (real_character == 'n')
1375                                         real_character = '\n';
1376                                 line += real_character;
1377                                 continue;
1378                         }
1379                         else
1380                         {
1381                                 errstr << "End of file after a \\, what did you want to escape?: " << filename << ":" << linenumber << std::endl;
1382                                 return false;
1383                         }
1384                 }
1385
1386                 if (ch != '\r')
1387                         line += ch;
1388
1389                 if ((ch != '<') && (!in_tag) && (!in_comment) && (ch > ' ') && (ch != 9))
1390                 {
1391                         errstr << "You have stray characters beyond the tag which starts at " << filename << ":" << last_successful_parse << std::endl;
1392                         return false;
1393                 }
1394
1395                 if (ch == '<')
1396                 {
1397                         if (in_tag)
1398                         {
1399                                 if (!in_quote)
1400                                 {
1401                                         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;
1402                                         return false;
1403                                 }
1404                         }
1405                         else
1406                         {
1407                                 if (in_quote)
1408                                 {
1409                                         errstr << "Parser error: Inside a quote but not within the last valid tag, which was opened at: " << filename << ":" << last_successful_parse << std::endl;
1410                                         return false;
1411                                 }
1412                                 else
1413                                 {
1414                                         // errstr << "Opening new config tag on line " << linenumber << std::endl;
1415                                         in_tag = true;
1416                                 }
1417                         }
1418                 }
1419                 else if (ch == '"')
1420                 {
1421                         if (in_tag)
1422                         {
1423                                 if (in_quote)
1424                                 {
1425                                         // errstr << "Closing quote in config tag on line " << linenumber << std::endl;
1426                                         in_quote = false;
1427                                 }
1428                                 else
1429                                 {
1430                                         // errstr << "Opening quote in config tag on line " << linenumber << std::endl;
1431                                         in_quote = true;
1432                                 }
1433                         }
1434                         else
1435                         {
1436                                 if (in_quote)
1437                                 {
1438                                         errstr << "The tag immediately after the one at " << filename << ":" << last_successful_parse << " has a missing closing \" symbol. Please check this." << std::endl;
1439                                 }
1440                                 else
1441                                 {
1442                                         errstr << "You have opened a quote (\") beyond the tag at " << filename << ":" << last_successful_parse << " without opening a new tag. Please check this." << std::endl;
1443                                 }
1444                         }
1445                 }
1446                 else if (ch == '>')
1447                 {
1448                         if (!in_quote)
1449                         {
1450                                 if (in_tag)
1451                                 {
1452                                         // errstr << "Closing config tag on line " << linenumber << std::endl;
1453                                         in_tag = false;
1454
1455                                         /*
1456                                          * If this finds an <include> then ParseLine can simply call
1457                                          * LoadConf() and load the included config into the same ConfigDataHash
1458                                          */
1459                                         long bl = linenumber;
1460                                         if (!this->ParseLine(filename, line, linenumber))
1461                                                 return false;
1462                                         last_successful_parse = linenumber;
1463
1464                                         linenumber = bl;
1465
1466                                         line.clear();
1467                                 }
1468                                 else
1469                                 {
1470                                         errstr << "You forgot to close the tag which comes immediately after the one at " << filename << ":" << last_successful_parse << std::endl;
1471                                         return false;
1472                                 }
1473                         }
1474                 }
1475         }
1476
1477         /* 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 */
1478         if (in_comment || in_quote)
1479         {
1480                 errstr << "Reached end of file whilst still inside a quoted section or tag. This is most likely an error or there \
1481                         is a newline missing from the end of the file: " << filename << ":" << linenumber << std::endl;
1482         }
1483
1484         return true;
1485 }
1486
1487
1488 bool ServerConfig::LoadConf(FILE* &conf, const std::string &filename)
1489 {
1490         return this->LoadConf(conf, filename.c_str());
1491 }
1492
1493 bool ServerConfig::ParseLine(const std::string &filename, std::string &line, long &linenumber)
1494 {
1495         std::string tagname;
1496         std::string current_key;
1497         std::string current_value;
1498         KeyValList results;
1499         char last_char = 0;
1500         bool got_name;
1501         bool got_key;
1502         bool in_quote;
1503
1504         got_name = got_key = in_quote = false;
1505
1506         for(std::string::iterator c = line.begin(); c != line.end(); c++)
1507         {
1508                 if (!got_name)
1509                 {
1510                         /* We don't know the tag name yet. */
1511
1512                         if (*c != ' ')
1513                         {
1514                                 if (*c != '<')
1515                                 {
1516                                         if ((*c >= 'a' && *c <= 'z') || (*c >= 'A' && *c <='Z') || (*c >= '0' && *c <= '9') || *c == '_')
1517                                                 tagname += *c;
1518                                         else
1519                                         {
1520                                                 errstr << "Invalid character in value name of tag: '" << *c << "' in value '" << tagname << "' in filename: " << filename << ":" << linenumber << std::endl;
1521                                                 return false;
1522                                         }
1523                                 }
1524                         }
1525                         else
1526                         {
1527                                 /* We got to a space, we should have the tagname now. */
1528                                 if(tagname.length())
1529                                 {
1530                                         got_name = true;
1531                                 }
1532                         }
1533                 }
1534                 else
1535                 {
1536                         /* We have the tag name */
1537                         if (!got_key)
1538                         {
1539                                 /* We're still reading the key name */
1540                                 if ((*c != '=') && (*c != '>'))
1541                                 {
1542                                         if (*c != ' ')
1543                                         {
1544                                                 if ((*c >= 'a' && *c <= 'z') || (*c >= 'A' && *c <='Z') || (*c >= '0' && *c <= '9') || *c == '_')
1545                                                         current_key += *c;
1546                                                 else
1547                                                 {
1548                                                         errstr << "Invalid character in key: '" << *c << "' in key '" << current_key << "' in filename: " << filename << ":" << linenumber << std::endl;
1549                                                         return false;
1550                                                 }
1551                                         }
1552                                 }
1553                                 else
1554                                 {
1555                                         /* We got an '=', end of the key name. */
1556                                         got_key = true;
1557                                 }
1558                         }
1559                         else
1560                         {
1561                                 /* We have the key name, now we're looking for quotes and the value */
1562
1563                                 /* Correctly handle escaped characters here.
1564                                  * See the XXX'ed section above.
1565                                  */
1566                                 if ((*c == '\\') && (in_quote))
1567                                 {
1568                                         c++;
1569                                         if (*c == 'n')
1570                                                 current_value += '\n';
1571                                         else
1572                                                 current_value += *c;
1573                                         continue;
1574                                 }
1575                                 else if ((*c == '\\') && (!in_quote))
1576                                 {
1577                                         errstr << "You can't have an escape sequence outside of a quoted section: " << filename << ":" << linenumber << std::endl;
1578                                         return false;
1579                                 }
1580                                 else if ((*c == '\n') && (in_quote))
1581                                 {
1582                                         /* Got a 'real' \n, treat it as part of the value */
1583                                         current_value += '\n';
1584                                         continue;
1585                                 }
1586                                 else if ((*c == '\r') && (in_quote))
1587                                 {
1588                                         /* Got a \r, drop it */
1589                                         continue;
1590                                 }
1591
1592                                 if (*c == '"')
1593                                 {
1594                                         if (!in_quote)
1595                                         {
1596                                                 /* We're not already in a quote. */
1597                                                 in_quote = true;
1598                                         }
1599                                         else
1600                                         {
1601                                                 /* Leaving the quotes, we have the current value */
1602                                                 results.push_back(KeyVal(current_key, current_value));
1603
1604                                                 // std::cout << "<" << tagname << ":" << current_key << "> " << current_value << std::endl;
1605
1606                                                 in_quote = false;
1607                                                 got_key = false;
1608
1609                                                 if ((tagname == "include") && (current_key == "file"))
1610                                                 {
1611                                                         if (!this->DoInclude(current_value))
1612                                                                 return false;
1613                                                 }
1614                                                 else if ((tagname == "include") && (current_key == "executable"))
1615                                                 {
1616                                                         /* Pipe an executable and use its stdout as config data */
1617                                                         if (!this->DoPipe(current_value))
1618                                                                 return false;
1619                                                 }
1620
1621                                                 current_key.clear();
1622                                                 current_value.clear();
1623                                         }
1624                                 }
1625                                 else
1626                                 {
1627                                         if (in_quote)
1628                                         {
1629                                                 last_char = *c;
1630                                                 current_value += *c;
1631                                         }
1632                                 }
1633                         }
1634                 }
1635         }
1636
1637         /* Finished parsing the tag, add it to the config hash */
1638         config_data.insert(std::pair<std::string, KeyValList > (tagname, results));
1639
1640         return true;
1641 }
1642
1643 bool ServerConfig::DoPipe(const std::string &file)
1644 {
1645         FILE* conf = popen(file.c_str(), "r");
1646         bool ret = false;
1647
1648         if (conf)
1649         {
1650                 ret = LoadConf(conf, file.c_str());
1651                 pclose(conf);
1652         }
1653         else
1654                 errstr << "Couldn't execute: " << file << std::endl;
1655
1656         return ret;
1657 }
1658
1659 bool ServerConfig::StartsWithWindowsDriveLetter(const std::string &path)
1660 {
1661         return (path.length() > 2 && isalpha(path[0]) && path[1] == ':');
1662 }
1663
1664 bool ServerConfig::DoInclude(const std::string &file)
1665 {
1666         std::string confpath;
1667         std::string newfile;
1668         std::string::size_type pos;
1669
1670         confpath = ServerInstance->ConfigFileName;
1671         newfile = file;
1672
1673         std::replace(newfile.begin(),newfile.end(),'\\','/');
1674         std::replace(confpath.begin(),confpath.end(),'\\','/');
1675
1676         if ((newfile[0] != '/') && (!StartsWithWindowsDriveLetter(newfile)))
1677         {
1678                 if((pos = confpath.rfind("/")) != std::string::npos)
1679                 {
1680                         /* Leaves us with just the path */
1681                         newfile = confpath.substr(0, pos) + std::string("/") + newfile;
1682                 }
1683                 else
1684                 {
1685                         errstr << "Couldn't get config path from: " << ServerInstance->ConfigFileName << std::endl;
1686                         return false;
1687                 }
1688         }
1689
1690         FILE* conf = fopen(newfile.c_str(), "r");
1691         bool ret = false;
1692
1693         if (conf)
1694         {
1695                 ret = LoadConf(conf, newfile);
1696                 fclose(conf);
1697         }
1698         else
1699                 errstr << "Couldn't open config file: " << file << std::endl;
1700
1701         return ret;
1702 }
1703
1704 bool ServerConfig::ConfValue(const char* tag, const char* var, int index, char* result, int length, bool allow_linefeeds)
1705 {
1706         return ConfValue(tag, var, "", index, result, length, allow_linefeeds);
1707 }
1708
1709 bool ServerConfig::ConfValue(const char* tag, const char* var, const char* default_value, int index, char* result, int length, bool allow_linefeeds)
1710 {
1711         std::string value;
1712         bool r = ConfValue(std::string(tag), std::string(var), std::string(default_value), index, value, allow_linefeeds);
1713         strlcpy(result, value.c_str(), length);
1714         return r;
1715 }
1716
1717 bool ServerConfig::ConfValue(const std::string &tag, const std::string &var, int index, std::string &result, bool allow_linefeeds)
1718 {
1719         return ConfValue(tag, var, "", index, result, allow_linefeeds);
1720 }
1721
1722 bool ServerConfig::ConfValue(const std::string &tag, const std::string &var, const std::string &default_value, int index, std::string &result, bool allow_linefeeds)
1723 {
1724         ConfigDataHash::size_type pos = index;
1725         if (pos < config_data.count(tag))
1726         {
1727                 ConfigDataHash::iterator iter = config_data.find(tag);
1728
1729                 for(int i = 0; i < index; i++)
1730                         iter++;
1731
1732                 for(KeyValList::iterator j = iter->second.begin(); j != iter->second.end(); j++)
1733                 {
1734                         if(j->first == var)
1735                         {
1736                                 if ((!allow_linefeeds) && (j->second.find('\n') != std::string::npos))
1737                                 {
1738                                         ServerInstance->Logs->Log("CONFIG",DEFAULT, "Value of <" + tag + ":" + var+ "> contains a linefeed, and linefeeds in this value are not permitted -- stripped to spaces.");
1739                                         for (std::string::iterator n = j->second.begin(); n != j->second.end(); n++)
1740                                                 if (*n == '\n')
1741                                                         *n = ' ';
1742                                 }
1743                                 else
1744                                 {
1745                                         result = j->second;
1746                                         return true;
1747                                 }
1748                         }
1749                 }
1750                 if (!default_value.empty())
1751                 {
1752                         result = default_value;
1753                         return true;
1754                 }
1755         }
1756         else if (pos == 0)
1757         {
1758                 if (!default_value.empty())
1759                 {
1760                         result = default_value;
1761                         return true;
1762                 }
1763         }
1764         return false;
1765 }
1766
1767 bool ServerConfig::ConfValueInteger(const char* tag, const char* var, int index, int &result)
1768 {
1769         return ConfValueInteger(std::string(tag), std::string(var), "", index, result);
1770 }
1771
1772 bool ServerConfig::ConfValueInteger(const char* tag, const char* var, const char* default_value, int index, int &result)
1773 {
1774         return ConfValueInteger(std::string(tag), std::string(var), std::string(default_value), index, result);
1775 }
1776
1777 bool ServerConfig::ConfValueInteger(const std::string &tag, const std::string &var, int index, int &result)
1778 {
1779         return ConfValueInteger(tag, var, "", index, result);
1780 }
1781
1782 bool ServerConfig::ConfValueInteger(const std::string &tag, const std::string &var, const std::string &default_value, int index, int &result)
1783 {
1784         std::string value;
1785         std::istringstream stream;
1786         bool r = ConfValue(tag, var, default_value, index, value);
1787         stream.str(value);
1788         if(!(stream >> result))
1789                 return false;
1790         else
1791         {
1792                 if (!value.empty())
1793                 {
1794                         if (value.substr(0,2) == "0x")
1795                         {
1796                                 char* endptr;
1797
1798                                 value.erase(0,2);
1799                                 result = strtol(value.c_str(), &endptr, 16);
1800
1801                                 /* No digits found */
1802                                 if (endptr == value.c_str())
1803                                         return false;
1804                         }
1805                         else
1806                         {
1807                                 char denominator = *(value.end() - 1);
1808                                 switch (toupper(denominator))
1809                                 {
1810                                         case 'K':
1811                                                 /* Kilobytes -> bytes */
1812                                                 result = result * 1024;
1813                                         break;
1814                                         case 'M':
1815                                                 /* Megabytes -> bytes */
1816                                                 result = result * 1024 * 1024;
1817                                         break;
1818                                         case 'G':
1819                                                 /* Gigabytes -> bytes */
1820                                                 result = result * 1024 * 1024 * 1024;
1821                                         break;
1822                                 }
1823                         }
1824                 }
1825         }
1826         return r;
1827 }
1828
1829
1830 bool ServerConfig::ConfValueBool(const char* tag, const char* var, int index)
1831 {
1832         return ConfValueBool(std::string(tag), std::string(var), "", index);
1833 }
1834
1835 bool ServerConfig::ConfValueBool(const char* tag, const char* var, const char* default_value, int index)
1836 {
1837         return ConfValueBool(std::string(tag), std::string(var), std::string(default_value), index);
1838 }
1839
1840 bool ServerConfig::ConfValueBool(const std::string &tag, const std::string &var, int index)
1841 {
1842         return ConfValueBool(tag, var, "", index);
1843 }
1844
1845 bool ServerConfig::ConfValueBool(const std::string &tag, const std::string &var, const std::string &default_value, int index)
1846 {
1847         std::string result;
1848         if(!ConfValue(tag, var, default_value, index, result))
1849                 return false;
1850
1851         return ((result == "yes") || (result == "true") || (result == "1"));
1852 }
1853
1854 int ServerConfig::ConfValueEnum(const char* tag)
1855 {
1856         return config_data.count(tag);
1857 }
1858
1859 int ServerConfig::ConfValueEnum(const std::string &tag)
1860 {
1861         return config_data.count(tag);
1862 }
1863
1864 int ServerConfig::ConfVarEnum(const char* tag, int index)
1865 {
1866         return ConfVarEnum(std::string(tag), index);
1867 }
1868
1869 int ServerConfig::ConfVarEnum(const std::string &tag, int index)
1870 {
1871         ConfigDataHash::size_type pos = index;
1872
1873         if (pos < config_data.count(tag))
1874         {
1875                 ConfigDataHash::const_iterator iter = config_data.find(tag);
1876
1877                 for(int i = 0; i < index; i++)
1878                         iter++;
1879
1880                 return iter->second.size();
1881         }
1882
1883         return 0;
1884 }
1885
1886 /** Read the contents of a file located by `fname' into a file_cache pointed at by `F'.
1887  */
1888 bool ServerConfig::ReadFile(file_cache &F, const char* fname)
1889 {
1890         if (!fname || !*fname)
1891                 return false;
1892
1893         FILE* file = NULL;
1894         char linebuf[MAXBUF];
1895
1896         F.clear();
1897
1898         if ((*fname != '/') && (*fname != '\\') && (!StartsWithWindowsDriveLetter(fname)))
1899         {
1900                 std::string::size_type pos;
1901                 std::string confpath = ServerInstance->ConfigFileName;
1902                 std::string newfile = fname;
1903
1904                 if (((pos = confpath.rfind("/"))) != std::string::npos)
1905                         newfile = confpath.substr(0, pos) + std::string("/") + fname;
1906                 else if (((pos = confpath.rfind("\\"))) != std::string::npos)
1907                         newfile = confpath.substr(0, pos) + std::string("\\") + fname;
1908
1909                 ServerInstance->Logs->Log("config", DEBUG, "Filename: %s", newfile.c_str());
1910
1911                 if (!FileExists(newfile.c_str()))
1912                         return false;
1913                 file =  fopen(newfile.c_str(), "r");
1914         }
1915         else
1916         {
1917                 if (!FileExists(fname))
1918                         return false;
1919                 file =  fopen(fname, "r");
1920         }
1921
1922         if (file)
1923         {
1924                 while (!feof(file))
1925                 {
1926                         if (fgets(linebuf, sizeof(linebuf), file))
1927                                 linebuf[strlen(linebuf)-1] = 0;
1928                         else
1929                                 *linebuf = 0;
1930
1931                         F.push_back(*linebuf ? linebuf : " ");
1932                 }
1933
1934                 fclose(file);
1935         }
1936         else
1937                 return false;
1938
1939         return true;
1940 }
1941
1942 bool ServerConfig::FileExists(const char* file)
1943 {
1944         struct stat sb;
1945         if (stat(file, &sb) == -1)
1946                 return false;
1947
1948         if ((sb.st_mode & S_IFDIR) > 0)
1949                 return false;
1950
1951         FILE *input;
1952         if ((input = fopen (file, "r")) == NULL)
1953                 return false;
1954         else
1955         {
1956                 fclose(input);
1957                 return true;
1958         }
1959 }
1960
1961 char* ServerConfig::CleanFilename(char* name)
1962 {
1963         char* p = name + strlen(name);
1964         while ((p != name) && (*p != '/') && (*p != '\\')) p--;
1965         return (p != name ? ++p : p);
1966 }
1967
1968
1969 std::string ServerConfig::GetFullProgDir()
1970 {
1971         char buffer[PATH_MAX];
1972 #ifdef WINDOWS
1973         /* Windows has specific api calls to get the exe path that never fail.
1974          * For once, windows has something of use, compared to the POSIX code
1975          * for this, this is positively neato.
1976          */
1977         if (GetModuleFileName(NULL, buffer, MAX_PATH))
1978         {
1979                 std::string fullpath = buffer;
1980                 std::string::size_type n = fullpath.rfind("\\inspircd.exe");
1981                 return std::string(fullpath, 0, n);
1982         }
1983 #else
1984         // Get the current working directory
1985         if (getcwd(buffer, PATH_MAX))
1986         {
1987                 std::string remainder = this->argv[0];
1988
1989                 /* Does argv[0] start with /? its a full path, use it */
1990                 if (remainder[0] == '/')
1991                 {
1992                         std::string::size_type n = remainder.rfind("/inspircd");
1993                         return std::string(remainder, 0, n);
1994                 }
1995
1996                 std::string fullpath = std::string(buffer) + "/" + remainder;
1997                 std::string::size_type n = fullpath.rfind("/inspircd");
1998                 return std::string(fullpath, 0, n);
1999         }
2000 #endif
2001         return "/";
2002 }
2003
2004 InspIRCd* ServerConfig::GetInstance()
2005 {
2006         return ServerInstance;
2007 }
2008
2009 std::string ServerConfig::GetSID()
2010 {
2011         return sid;
2012 }
2013
2014 ValueItem::ValueItem(int value)
2015 {
2016         std::stringstream n;
2017         n << value;
2018         v = n.str();
2019 }
2020
2021 ValueItem::ValueItem(bool value)
2022 {
2023         std::stringstream n;
2024         n << value;
2025         v = n.str();
2026 }
2027
2028 void ValueItem::Set(const std::string& value)
2029 {
2030         v = value;
2031 }
2032
2033 void ValueItem::Set(int value)
2034 {
2035         std::stringstream n;
2036         n << value;
2037         v = n.str();
2038 }
2039
2040 int ValueItem::GetInteger()
2041 {
2042         if (v.empty())
2043                 return 0;
2044         return atoi(v.c_str());
2045 }
2046
2047 const char* ValueItem::GetString() const
2048 {
2049         return v.c_str();
2050 }
2051
2052 bool ValueItem::GetBool()
2053 {
2054         return (GetInteger() || v == "yes" || v == "true");
2055 }
2056
2057
2058 void ConfigReaderThread::Run()
2059 {
2060         Config = new ServerConfig(ServerInstance);
2061         Config->Read();
2062         done = true;
2063 }
2064
2065 void ConfigReaderThread::Finish()
2066 {
2067         ServerConfig* old = ServerInstance->Config;
2068         ServerInstance->Logs->Log("CONFIG",DEBUG,"Switching to new configuration...");
2069         ServerInstance->Logs->CloseLogs();
2070         ServerInstance->Config = this->Config;
2071         ServerInstance->Logs->OpenFileLogs();
2072         Config->Apply(old, TheUserUID);
2073
2074         if (Config->valid)
2075         {
2076                 /*
2077                  * Apply the changed configuration from the rehash.
2078                  *
2079                  * XXX: The order of these is IMPORTANT, do not reorder them without testing
2080                  * thoroughly!!!
2081                  */
2082                 ServerInstance->XLines->CheckELines();
2083                 ServerInstance->XLines->CheckELines();
2084                 ServerInstance->XLines->ApplyLines();
2085                 ServerInstance->Res->Rehash();
2086                 ServerInstance->ResetMaxBans();
2087                 Config->ApplyDisabledCommands(Config->DisabledCommands);
2088                 User* user = TheUserUID.empty() ? ServerInstance->FindNick(TheUserUID) : NULL;
2089                 FOREACH_MOD_I(ServerInstance, I_OnRehash, OnRehash(user));
2090                 ServerInstance->BuildISupport();
2091
2092                 delete old;
2093         }
2094         else
2095         {
2096                 // whoops, abort!
2097                 ServerInstance->Logs->CloseLogs();
2098                 ServerInstance->Config = old;
2099                 ServerInstance->Logs->OpenFileLogs();
2100                 delete this->Config;
2101         }
2102 }
2103
2104 template<>
2105 void ValueContainer<char[MAXBUF]>::Set(ServerConfig* conf, ValueItem const& item)
2106 {
2107         strlcpy(conf->*vptr, item.GetString(), MAXBUF);
2108 }