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 std::vector<std::string> old_module_names, new_module_names, added_modules, removed_modules;
  36
  37 /* Needs forward declaration */
  38 bool ValidateDnsServer(ServerConfig* conf, const char* tag, const char* value, ValueItem &data);
  39 bool DoneELine(ServerConfig* conf, const char* tag);
  40
  41 ServerConfig::ServerConfig(InspIRCd* Instance) : ServerInstance(Instance)
  42 {
  43         this->ClearStack();
  44         *sid = *ServerName = *Network = *ServerDesc = *AdminName = '\0';
  45         *HideWhoisServer = *AdminEmail = *AdminNick = *diepass = *restartpass = *FixedQuit = *HideKillsServer = '\0';
  46         *DefaultModes = *CustomVersion = *motd = *rules = *PrefixQuit = *DieValue = *DNSServer = '\0';
  47         *UserStats = *ModPath = *MyExecutable = *DisabledCommands = *PID = *SuffixQuit = '\0';
  48         WhoWasGroupSize = WhoWasMaxGroups = WhoWasMaxKeep = 0;
  49         log_file = NULL;
  50         NoUserDns = forcedebug = OperSpyWhois = nofork = HideBans = HideSplits = UndernetMsgPrefix = false;
  51         CycleHosts = writelog = AllowHalfop = InvBypassModes = true;
  52         dns_timeout = DieDelay = 5;
  53         MaxTargets = 20;
  54         NetBufferSize = 10240;
  55         SoftLimit = Instance->SE->GetMaxFds();
  56         MaxConn = SOMAXCONN;
  57         MaxWhoResults = 0;
  58         debugging = 0;
  59         MaxChans = 20;
  60         OperMaxChans = 30;
  61         c_ipv4_range = 32;
  62         c_ipv6_range = 128;
  63         maxbans.clear();
  64         DNSServerValidator = &ValidateDnsServer;
  65 }
  66
  67 void ServerConfig::ClearStack()
  68 {
  69         include_stack.clear();
  70 }
  71
  72 void ServerConfig::Update005()
  73 {
  74         std::stringstream out(data005);
  75         std::string token;
  76         std::string line5;
  77         int token_counter = 0;
  78         isupport.clear();
  79         while (out >> token)
  80         {
  81                 line5 = line5 + token + " ";
  82                 token_counter++;
  83                 if (token_counter >= 13)
  84                 {
  85                         char buf[MAXBUF];
  86                         snprintf(buf, MAXBUF, "%s:are supported by this server", line5.c_str());
  87                         isupport.push_back(buf);
  88                         line5.clear();
  89                         token_counter = 0;
  90                 }
  91         }
  92         if (!line5.empty())
  93         {
  94                 char buf[MAXBUF];
  95                 snprintf(buf, MAXBUF, "%s:are supported by this server", line5.c_str());
  96                 isupport.push_back(buf);
  97         }
  98 }
  99
 100 void ServerConfig::Send005(User* user)
 101 {
 102         for (std::vector<std::string>::iterator line = ServerInstance->Config->isupport.begin(); line != ServerInstance->Config->isupport.end(); line++)
 103                 user->WriteNumeric(RPL_ISUPPORT, "%s %s", user->nick.c_str(), line->c_str());
 104 }
 105
 106 bool ServerConfig::CheckOnce(const char* tag)
 107 {
 108         int count = ConfValueEnum(tag);
 109
 110         if (count > 1)
 111                 throw CoreException("You have more than one <"+std::string(tag)+"> tag, this is not permitted.");
 112         if (count < 1)
 113                 throw CoreException("You have not defined a <"+std::string(tag)+"> tag, this is required.");
 114         return true;
 115 }
 116
 117 bool NoValidation(ServerConfig*, const char*, const char*, ValueItem&)
 118 {
 119         return true;
 120 }
 121
 122 bool DoneConfItem(ServerConfig* conf, const char* tag)
 123 {
 124         return true;
 125 }
 126
 127 void ServerConfig::ValidateNoSpaces(const char* p, const std::string &tag, const std::string &val)
 128 {
 129         for (const char* ptr = p; *ptr; ++ptr)
 130         {
 131                 if (*ptr == ' ')
 132                         throw CoreException("The value of <"+tag+":"+val+"> cannot contain spaces");
 133         }
 134 }
 135
 136 /* 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,
 137  * even in strerror(errno). They just return 'yes' or 'no' to an address without such detail as to whats WRONG with the address.
 138  * Because ircd users arent as technical as they used to be (;)) we are going to give more of a useful error message.
 139  */
 140 void ServerConfig::ValidateIP(const char* p, const std::string &tag, const std::string &val, bool wild)
 141 {
 142         int num_dots = 0;
 143         int num_seps = 0;
 144         int not_numbers = false;
 145         int not_hex = false;
 146
 147         if (*p)
 148         {
 149                 if (*p == '.')
 150                         throw CoreException("The value of <"+tag+":"+val+"> is not an IP address");
 151
 152                 for (const char* ptr = p; *ptr; ++ptr)
 153                 {
 154                         if (wild && (*ptr == '*' || *ptr == '?' || *ptr == '/'))
 155                                 continue;
 156
 157                         if (*ptr != ':' && *ptr != '.')
 158                         {
 159                                 if (*ptr < '0' || *ptr > '9')
 160                                         not_numbers = true;
 161                                 if ((*ptr < '0' || *ptr > '9') && (toupper(*ptr) < 'A' || toupper(*ptr) > 'F'))
 162                                         not_hex = true;
 163                         }
 164                         switch (*ptr)
 165                         {
 166                                 case ' ':
 167                                         throw CoreException("The value of <"+tag+":"+val+"> is not an IP address");
 168                                 case '.':
 169                                         num_dots++;
 170                                 break;
 171                                 case ':':
 172                                         num_seps++;
 173                                 break;
 174                         }
 175                 }
 176
 177                 if (num_dots > 3)
 178                         throw CoreException("The value of <"+tag+":"+val+"> is an IPv4 address with too many fields!");
 179
 180                 if (num_seps > 8)
 181                         throw CoreException("The value of <"+tag+":"+val+"> is an IPv6 address with too many fields!");
 182
 183                 if (num_seps == 0 && num_dots < 3 && !wild)
 184                         throw CoreException("The value of <"+tag+":"+val+"> looks to be a malformed IPv4 address");
 185
 186                 if (num_seps == 0 && num_dots == 3 && not_numbers)
 187                         throw CoreException("The value of <"+tag+":"+val+"> contains non-numeric characters in an IPv4 address");
 188
 189                 if (num_seps != 0 && not_hex)
 190                         throw CoreException("The value of <"+tag+":"+val+"> contains non-hexdecimal characters in an IPv6 address");
 191
 192                 if (num_seps != 0 && num_dots != 3 && num_dots != 0 && !wild)
 193                         throw CoreException("The value of <"+tag+":"+val+"> is a malformed IPv6 4in6 address");
 194         }
 195 }
 196
 197 void ServerConfig::ValidateHostname(const char* p, const std::string &tag, const std::string &val)
 198 {
 199         int num_dots = 0;
 200         if (*p)
 201         {
 202                 if (*p == '.')
 203                         throw CoreException("The value of <"+tag+":"+val+"> is not a valid hostname");
 204                 for (const char* ptr = p; *ptr; ++ptr)
 205                 {
 206                         switch (*ptr)
 207                         {
 208                                 case ' ':
 209                                         throw CoreException("The value of <"+tag+":"+val+"> is not a valid hostname");
 210                                 case '.':
 211                                         num_dots++;
 212                                 break;
 213                         }
 214                 }
 215                 if (num_dots == 0)
 216                         throw CoreException("The value of <"+tag+":"+val+"> is not a valid hostname");
 217         }
 218 }
 219
 220 bool ValidateMaxTargets(ServerConfig* conf, const char*, const char*, ValueItem &data)
 221 {
 222         if ((data.GetInteger() < 0) || (data.GetInteger() > 31))
 223         {
 224                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"WARNING: <security:maxtargets> value is greater than 31 or less than 0, set to 20.");
 225                 data.Set(20);
 226         }
 227         return true;
 228 }
 229
 230 bool ValidateSoftLimit(ServerConfig* conf, const char*, const char*, ValueItem &data)
 231 {
 232         if ((data.GetInteger() < 1) || (data.GetInteger() > conf->GetInstance()->SE->GetMaxFds()))
 233         {
 234                 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());
 235                 data.Set(conf->GetInstance()->SE->GetMaxFds());
 236         }
 237         return true;
 238 }
 239
 240 bool ValidateMaxConn(ServerConfig* conf, const char*, const char*, ValueItem &data)
 241 {
 242         if (data.GetInteger() > SOMAXCONN)
 243                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"WARNING: <performance:somaxconn> value may be higher than the system-defined SOMAXCONN value!");
 244         return true;
 245 }
 246
 247 bool InitializeDisabledCommands(const char* data, InspIRCd* ServerInstance)
 248 {
 249         std::stringstream dcmds(data);
 250         std::string thiscmd;
 251
 252         /* Enable everything first */
 253         for (Commandtable::iterator x = ServerInstance->Parser->cmdlist.begin(); x != ServerInstance->Parser->cmdlist.end(); x++)
 254                 x->second->Disable(false);
 255
 256         /* Now disable all the ones which the user wants disabled */
 257         while (dcmds >> thiscmd)
 258         {
 259                 Commandtable::iterator cm = ServerInstance->Parser->cmdlist.find(thiscmd);
 260                 if (cm != ServerInstance->Parser->cmdlist.end())
 261                 {
 262                         cm->second->Disable(true);
 263                 }
 264         }
 265         return true;
 266 }
 267
 268 bool ValidateDisabledUModes(ServerConfig* conf, const char*, const char*, ValueItem &data)
 269 {
 270         memset(conf->DisabledUModes, 0, sizeof(conf->DisabledUModes));
 271         for (const unsigned char* p = (const unsigned char*)data.GetString(); *p; ++p)
 272         {
 273                 if (*p < 'A' || *p > ('A' + 64)) throw CoreException(std::string("Invalid usermode ")+(char)*p+" was found.");
 274                 conf->DisabledUModes[*p - 'A'] = 1;
 275         }
 276         return true;
 277 }
 278
 279 bool ValidateDisabledCModes(ServerConfig* conf, const char*, const char*, ValueItem &data)
 280 {
 281         memset(conf->DisabledCModes, 0, sizeof(conf->DisabledCModes));
 282         for (const unsigned char* p = (const unsigned char*)data.GetString(); *p; ++p)
 283         {
 284                 if (*p < 'A' || *p > ('A' + 64)) throw CoreException(std::string("Invalid chanmode ")+(char)*p+" was found.");
 285                 conf->DisabledCModes[*p - 'A'] = 1;
 286         }
 287         return true;
 288 }
 289
 290 bool ValidateDnsServer(ServerConfig* conf, const char*, const char*, ValueItem &data)
 291 {
 292         if (!*(data.GetString()))
 293         {
 294                 std::string nameserver;
 295                 // attempt to look up their nameserver from /etc/resolv.conf
 296                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"WARNING: <dns:server> not defined, attempting to find working server in /etc/resolv.conf...");
 297                 std::ifstream resolv("/etc/resolv.conf");
 298                 bool found_server = false;
 299
 300                 if (resolv.is_open())
 301                 {
 302                         while (resolv >> nameserver)
 303                         {
 304                                 if ((nameserver == "nameserver") && (!found_server))
 305                                 {
 306                                         resolv >> nameserver;
 307                                         data.Set(nameserver.c_str());
 308                                         found_server = true;
 309                                         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"<dns:server> set to '%s' as first resolver in /etc/resolv.conf.",nameserver.c_str());
 310                                 }
 311                         }
 312
 313                         if (!found_server)
 314                         {
 315                                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"/etc/resolv.conf contains no viable nameserver entries! Defaulting to nameserver '127.0.0.1'!");
 316                                 data.Set("127.0.0.1");
 317                         }
 318                 }
 319                 else
 320                 {
 321                         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"/etc/resolv.conf can't be opened! Defaulting to nameserver '127.0.0.1'!");
 322                         data.Set("127.0.0.1");
 323                 }
 324         }
 325         return true;
 326 }
 327
 328 bool ValidateServerName(ServerConfig* conf, const char*, const char*, ValueItem &data)
 329 {
 330         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"Validating server name");
 331         /* If we already have a servername, and they changed it, we should throw an exception. */
 332         if (!strchr(data.GetString(), '.'))
 333         {
 334                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"WARNING: <server:name> '%s' is not a fully-qualified domain name. Changed to '%s%c'",data.GetString(),data.GetString(),'.');
 335                 std::string moo = std::string(data.GetString()).append(".");
 336                 data.Set(moo.c_str());
 337         }
 338         conf->ValidateHostname(data.GetString(), "server", "name");
 339         return true;
 340 }
 341
 342 bool ValidateNetBufferSize(ServerConfig* conf, const char*, const char*, ValueItem &data)
 343 {
 344         // 65534 not 65535 because of null terminator
 345         if ((!data.GetInteger()) || (data.GetInteger() > 65534) || (data.GetInteger() < 1024))
 346         {
 347                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 348                 data.Set(10240);
 349         }
 350         return true;
 351 }
 352
 353 bool ValidateMaxWho(ServerConfig* conf, const char*, const char*, ValueItem &data)
 354 {
 355         if ((data.GetInteger() > 65535) || (data.GetInteger() < 1))
 356         {
 357                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"<performance:maxwho> size out of range, setting to default of 128.");
 358                 data.Set(128);
 359         }
 360         return true;
 361 }
 362
 363 bool ValidateHalfOp(ServerConfig* conf, const char*, const char*, ValueItem &data)
 364 {
 365         ModeHandler* mh = conf->GetInstance()->Modes->FindMode('h', MODETYPE_CHANNEL);
 366         if (data.GetBool() && !mh)
 367         {
 368                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"Enabling halfop mode.");
 369                 mh = new ModeChannelHalfOp(conf->GetInstance());
 370                 conf->GetInstance()->Modes->AddMode(mh);
 371         }
 372         else if (!data.GetBool() && mh)
 373         {
 374                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"Disabling halfop mode.");
 375                 conf->GetInstance()->Modes->DelMode(mh);
 376                 delete mh;
 377         }
 378         return true;
 379 }
 380
 381 bool ValidateMotd(ServerConfig* conf, const char*, const char*, ValueItem &data)
 382 {
 383         conf->ReadFile(conf->MOTD, data.GetString());
 384         return true;
 385 }
 386
 387 bool ValidateNotEmpty(ServerConfig*, const char* tag, const char* val, ValueItem &data)
 388 {
 389         if (!*data.GetString())
 390                 throw CoreException(std::string("The value for <")+tag+":"+val+"> cannot be empty!");
 391         return true;
 392 }
 393
 394 bool ValidateRules(ServerConfig* conf, const char*, const char*, ValueItem &data)
 395 {
 396         conf->ReadFile(conf->RULES, data.GetString());
 397         return true;
 398 }
 399
 400 bool ValidateModeLists(ServerConfig* conf, const char*, const char*, ValueItem &data)
 401 {
 402         memset(conf->HideModeLists, 0, sizeof(conf->HideModeLists));
 403         for (const unsigned char* x = (const unsigned char*)data.GetString(); *x; ++x)
 404                 conf->HideModeLists[*x] = true;
 405         return true;
 406 }
 407
 408 bool ValidateExemptChanOps(ServerConfig* conf, const char*, const char*, ValueItem &data)
 409 {
 410         memset(conf->ExemptChanOps, 0, sizeof(conf->ExemptChanOps));
 411         for (const unsigned char* x = (const unsigned char*)data.GetString(); *x; ++x)
 412                 conf->ExemptChanOps[*x] = true;
 413         return true;
 414 }
 415
 416 bool ValidateInvite(ServerConfig* conf, const char*, const char*, ValueItem &data)
 417 {
 418         std::string v = data.GetString();
 419
 420         if (v == "ops")
 421                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_OPS;
 422         else if (v == "all")
 423                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_ALL;
 424         else if (v == "dynamic")
 425                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_DYNAMIC;
 426         else
 427                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_NONE;
 428
 429         return true;
 430 }
 431
 432 bool ValidateSID(ServerConfig* conf, const char*, const char*, ValueItem &data)
 433 {
 434         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"Validating server id");
 435
 436         const char *sid = data.GetString();
 437
 438         if (*sid && !conf->GetInstance()->IsSID(sid))
 439         {
 440                 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.");
 441         }
 442
 443         strlcpy(conf->sid, sid, 5);
 444
 445         return true;
 446 }
 447
 448 bool ValidateWhoWas(ServerConfig* conf, const char*, const char*, ValueItem &data)
 449 {
 450         conf->WhoWasMaxKeep = conf->GetInstance()->Duration(data.GetString());
 451
 452         if (conf->WhoWasGroupSize < 0)
 453                 conf->WhoWasGroupSize = 0;
 454
 455         if (conf->WhoWasMaxGroups < 0)
 456                 conf->WhoWasMaxGroups = 0;
 457
 458         if (conf->WhoWasMaxKeep < 3600)
 459         {
 460                 conf->WhoWasMaxKeep = 3600;
 461                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"WARNING: <whowas:maxkeep> value less than 3600, setting to default 3600");
 462         }
 463
 464         Command* whowas_command = conf->GetInstance()->Parser->GetHandler("WHOWAS");
 465         if (whowas_command)
 466         {
 467                 std::deque<classbase*> params;
 468                 whowas_command->HandleInternal(WHOWAS_PRUNE, params);
 469         }
 470
 471         return true;
 472 }
 473
 474 /* Callback called before processing the first <connect> tag
 475  */
 476 bool InitConnect(ServerConfig* conf, const char*)
 477 {
 478         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"Reading connect classes... class list is:");
 479
 480         for (ClassVector::iterator i = conf->Classes.begin(); i != conf->Classes.end() ; )
 481         {
 482                 ConnectClass* c = *i;
 483
 484                 /*
 485                  * only delete a class with refcount 0.
 486                  * this is needed to avoid trampling on a wild pointer (User::MyClass)!
 487                  * it's also the most simple way to do it, given that we're looking at threads..
 488                  * -- w00t
 489                  */
 490                 if (c->RefCount == 0)
 491                 {
 492                         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT, "Removing connect class, refcount is 0!");
 493
 494                         /* This was causing a crash, because we'd set i to .begin() just here, but then the for loop's increment would
 495                          * set it to .begin() + 1. Which if it was already the last thing in the list, wasn't good.
 496                          * Now the increment is in the else { } below.
 497                          */
 498                         conf->Classes.erase(i);
 499                         i = conf->Classes.begin(); // start over so we don't trample on a bad iterator
 500                 }
 501                 else
 502                 {
 503                         /* also mark all existing classes disabled, if they still exist in the conf, they will be reenabled. */
 504                         c->SetDisabled(true);
 505                         i++;
 506                 }
 507         }
 508
 509         return true;
 510 }
 511
 512 /* Callback called to process a single <connect> tag
 513  */
 514 bool DoConnect(ServerConfig* conf, const char*, char**, ValueList &values, int*)
 515 {
 516         ConnectClass c;
 517         const char* allow = values[0].GetString(); /* Yeah, there are a lot of values. Live with it. */
 518         const char* deny = values[1].GetString();
 519         const char* password = values[2].GetString();
 520         int timeout = values[3].GetInteger();
 521         int pingfreq = values[4].GetInteger();
 522         int sendq = values[5].GetInteger();
 523         int recvq = values[6].GetInteger();
 524         int localmax = values[7].GetInteger();
 525         int globalmax = values[8].GetInteger();
 526         int port = values[9].GetInteger();
 527         const char* name = values[10].GetString();
 528         const char* parent = values[11].GetString();
 529         int maxchans = values[12].GetInteger();
 530         unsigned long limit = values[13].GetInteger();
 531         const char* hashtype = values[14].GetString();
 532
 533         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"Adding a connect class!");
 534
 535         ConnectClass *cc = NULL;
 536
 537         if (*parent)
 538         {
 539                 /* Find 'parent' and inherit a new class from it,
 540                  * then overwrite any values that are set here
 541                  */
 542                 ClassVector::iterator item = conf->Classes.begin();
 543                 for (; item != conf->Classes.end(); ++item)
 544                 {
 545                         cc = *item;
 546                         conf->GetInstance()->Logs->Log("CONFIG",DEBUG,"Class: %s", cc->GetName().c_str());
 547                         if (cc->GetName() == parent)
 548                         {
 549                                 cc = new ConnectClass(name, cc);
 550                                 cc->Update(timeout, *allow ? allow : deny, pingfreq, password, sendq, recvq, localmax, globalmax, maxchans, port, limit);
 551                                 conf->Classes.push_back(cc);
 552                                 break;
 553                         }
 554                 }
 555                 if (item == conf->Classes.end())
 556                         throw CoreException("Class name '" + std::string(name) + "' is configured to inherit from class '" + std::string(parent) + "' which cannot be found.");
 557         }
 558         else
 559         {
 560                 if (*allow)
 561                 {
 562                         /* Find existing class by mask, the mask should be unique */
 563                         for (ClassVector::iterator item = conf->Classes.begin(); item != conf->Classes.end(); ++item)
 564                         {
 565                                 if ((*item)->GetHost() == allow && !(*item)->GetDisabled())
 566                                 {
 567                                         (*item)->Update(timeout, allow, pingfreq, password, sendq, recvq, localmax, globalmax, maxchans, port, limit);
 568                                         return true;
 569                                 }
 570                         }
 571                         cc = new ConnectClass(name, timeout, allow, pingfreq, password, hashtype, sendq, recvq, localmax, globalmax, maxchans);
 572                         cc->limit = limit;
 573                         cc->SetPort(port);
 574                         conf->Classes.push_back(cc);
 575                 }
 576                 else
 577                 {
 578                         /* Find existing class by mask, the mask should be unique */
 579                         for (ClassVector::iterator item = conf->Classes.begin(); item != conf->Classes.end(); ++item)
 580                         {
 581                                 if ((*item)->GetHost() == deny && !(*item)->GetDisabled())
 582                                 {
 583                                         (*item)->Update(name, deny);
 584                                         (*item)->SetPort(port);
 585                                         return true;
 586                                 }
 587                         }
 588                         cc = new ConnectClass(name, deny);
 589                         cc->SetPort(port);
 590                         conf->Classes.push_back(cc);
 591                 }
 592         }
 593
 594         return true;
 595 }
 596
 597 /* Callback called when there are no more <connect> tags
 598  */
 599 bool DoneConnect(ServerConfig *conf, const char*)
 600 {
 601         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT, "Done adding connect classes!");
 602         return true;
 603 }
 604
 605 /* Callback called before processing the first <uline> tag
 606  */
 607 bool InitULine(ServerConfig* conf, const char*)
 608 {
 609         conf->ulines.clear();
 610         return true;
 611 }
 612
 613 /* Callback called to process a single <uline> tag
 614  */
 615 bool DoULine(ServerConfig* conf, const char*, char**, ValueList &values, int*)
 616 {
 617         const char* server = values[0].GetString();
 618         const bool silent = values[1].GetBool();
 619         conf->ulines[server] = silent;
 620         return true;
 621 }
 622
 623 /* Callback called when there are no more <uline> tags
 624  */
 625 bool DoneULine(ServerConfig*, const char*)
 626 {
 627         return true;
 628 }
 629
 630 /* Callback called before processing the first <module> tag
 631  */
 632 bool InitModule(ServerConfig* conf, const char*)
 633 {
 634         old_module_names = conf->GetInstance()->Modules->GetAllModuleNames(0);
 635         new_module_names.clear();
 636         added_modules.clear();
 637         removed_modules.clear();
 638         return true;
 639 }
 640
 641 /* Callback called to process a single <module> tag
 642  */
 643 bool DoModule(ServerConfig*, const char*, char**, ValueList &values, int*)
 644 {
 645         const char* modname = values[0].GetString();
 646         new_module_names.push_back(modname);
 647         return true;
 648 }
 649
 650 /* Callback called when there are no more <module> tags
 651  */
 652 bool DoneModule(ServerConfig*, const char*)
 653 {
 654         // now create a list of new modules that are due to be loaded
 655         // and a seperate list of modules which are due to be unloaded
 656         for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
 657         {
 658                 bool added = true;
 659
 660                 for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
 661                 {
 662                         if (*old == *_new)
 663                                 added = false;
 664                 }
 665
 666                 if (added)
 667                         added_modules.push_back(*_new);
 668         }
 669
 670         for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
 671         {
 672                 bool removed = true;
 673                 for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
 674                 {
 675                         if (*newm == *oldm)
 676                                 removed = false;
 677                 }
 678
 679                 if (removed)
 680                         removed_modules.push_back(*oldm);
 681         }
 682         return true;
 683 }
 684
 685 /* Callback called before processing the first <banlist> tag
 686  */
 687 bool InitMaxBans(ServerConfig* conf, const char*)
 688 {
 689         conf->maxbans.clear();
 690         return true;
 691 }
 692
 693 /* Callback called to process a single <banlist> tag
 694  */
 695 bool DoMaxBans(ServerConfig* conf, const char*, char**, ValueList &values, int*)
 696 {
 697         const char* channel = values[0].GetString();
 698         int limit = values[1].GetInteger();
 699         conf->maxbans[channel] = limit;
 700         return true;
 701 }
 702
 703 /* Callback called when there are no more <banlist> tags.
 704  */
 705 bool DoneMaxBans(ServerConfig*, const char*)
 706 {
 707         return true;
 708 }
 709
 710 void ServerConfig::ReportConfigError(const std::string &errormessage)
 711 {
 712         ServerInstance->Logs->Log("CONFIG",DEFAULT, "There were errors in your configuration file: %s", errormessage.c_str());
 713         errstr << errormessage << std::endl;
 714 }
 715
 716 void ServerConfig::Read()
 717 {
 718         static char maxkeep[MAXBUF];    /* Temporary buffer for WhoWasMaxKeep value */
 719         static char hidemodes[MAXBUF];  /* Modes to not allow listing from users below halfop */
 720         static char exemptchanops[MAXBUF];      /* Exempt channel ops from these modes */
 721         static char announceinvites[MAXBUF];    /* options:announceinvites setting */
 722         static char disabledumodes[MAXBUF]; /* Disabled usermodes */
 723         static char disabledcmodes[MAXBUF]; /* Disabled chanmodes */
 724         valid = true;
 725         /* std::ostringstream::clear() does not clear the string itself, only the error flags. */
 726         errstr.clear();
 727         errstr.str().clear();
 728         include_stack.clear();
 729
 730         /* These tags MUST occur and must ONLY occur once in the config file */
 731         static const char* Once[] = { "server", "admin", "files", "power", "options", NULL };
 732
 733         Deprecated ChangedConfig[] = {
 734                 {"options",     "hidelinks",            "has been moved to <security:hidelinks> as of 1.2a3"},
 735                 {"options",     "hidewhois",            "has been moved to <security:hidewhois> as of 1.2a3"},
 736                 {"options",     "userstats",            "has been moved to <security:userstats> as of 1.2a3"},
 737                 {"options",     "customversion",        "has been moved to <security:customversion> as of 1.2a3"},
 738                 {"options",     "hidesplits",           "has been moved to <security:hidesplits> as of 1.2a3"},
 739                 {"options",     "hidebans",             "has been moved to <security:hidebans> as of 1.2a3"},
 740                 {"options",     "hidekills",            "has been moved to <security:hidekills> as of 1.2a3"},
 741                 {"options",     "operspywhois",         "has been moved to <security:operspywhois> as of 1.2a3"},
 742                 {"options",     "announceinvites",      "has been moved to <security:announceinvites> as of 1.2a3"},
 743                 {"options",     "hidemodes",            "has been moved to <security:hidemodes> as of 1.2a3"},
 744                 {"options",     "maxtargets",           "has been moved to <security:maxtargets> as of 1.2a3"},
 745                 {"options",     "nouserdns",            "has been moved to <performance:nouserdns> as of 1.2a3"},
 746                 {"options",     "maxwho",               "has been moved to <performance:maxwho> as of 1.2a3"},
 747                 {"options",     "softlimit",            "has been moved to <performance:softlimit> as of 1.2a3"},
 748                 {"options",     "somaxconn",            "has been moved to <performance:somaxconn> as of 1.2a3"},
 749                 {"options",     "netbuffersize",        "has been moved to <performance:netbuffersize> as of 1.2a3"},
 750                 {"options",     "maxwho",               "has been moved to <performance:maxwho> as of 1.2a3"},
 751                 {"options",     "loglevel",             "1.2 does not use the loglevel value. Please define <log> tags instead."},
 752                 {NULL,          NULL,                   NULL}
 753         };
 754
 755         /* These tags can occur ONCE or not at all */
 756         InitialConfig Values[] = {
 757                 {"performance", "softlimit",    "0",                    new ValueContainerUInt (&this->SoftLimit),              DT_INTEGER,  ValidateSoftLimit},
 758                 {"performance", "somaxconn",    SOMAXCONN_S,            new ValueContainerInt  (&this->MaxConn),                DT_INTEGER,  ValidateMaxConn},
 759                 {"options",     "moronbanner",  "Youre banned!",        new ValueContainerChar (this->MoronBanner),             DT_CHARPTR,  NoValidation},
 760                 {"server",      "name",         "",                     new ValueContainerChar (this->ServerName),              DT_HOSTNAME, ValidateServerName},
 761                 {"server",      "description",  "Configure Me",         new ValueContainerChar (this->ServerDesc),              DT_CHARPTR,  NoValidation},
 762                 {"server",      "network",      "Network",              new ValueContainerChar (this->Network),                 DT_NOSPACES, NoValidation},
 763                 {"server",      "id",           "",                     new ValueContainerChar (this->sid),                     DT_CHARPTR,  ValidateSID},
 764                 {"admin",       "name",         "",                     new ValueContainerChar (this->AdminName),               DT_CHARPTR,  NoValidation},
 765                 {"admin",       "email",        "Mis@configu.red",      new ValueContainerChar (this->AdminEmail),              DT_CHARPTR,  NoValidation},
 766                 {"admin",       "nick",         "Misconfigured",        new ValueContainerChar (this->AdminNick),               DT_CHARPTR,  NoValidation},
 767                 {"files",       "motd",         "",                     new ValueContainerChar (this->motd),                    DT_CHARPTR,  ValidateMotd},
 768                 {"files",       "rules",        "",                     new ValueContainerChar (this->rules),                   DT_CHARPTR,  ValidateRules},
 769                 {"power",       "diepass",      "",                     new ValueContainerChar (this->diepass),                 DT_CHARPTR,  ValidateNotEmpty},
 770                 {"power",       "pause",        "",                     new ValueContainerInt  (&this->DieDelay),               DT_INTEGER,  NoValidation},
 771                 {"power",       "hash",         "",                     new ValueContainerChar (this->powerhash),               DT_CHARPTR,  NoValidation},
 772                 {"power",       "restartpass",  "",                     new ValueContainerChar (this->restartpass),             DT_CHARPTR,  ValidateNotEmpty},
 773                 {"options",     "prefixquit",   "",                     new ValueContainerChar (this->PrefixQuit),              DT_CHARPTR,  NoValidation},
 774                 {"options",     "suffixquit",   "",                     new ValueContainerChar (this->SuffixQuit),              DT_CHARPTR,  NoValidation},
 775                 {"options",     "fixedquit",    "",                     new ValueContainerChar (this->FixedQuit),               DT_CHARPTR,  NoValidation},
 776                 {"options",     "prefixpart",   "",                     new ValueContainerChar (this->PrefixPart),              DT_CHARPTR,  NoValidation},
 777                 {"options",     "suffixpart",   "",                     new ValueContainerChar (this->SuffixPart),              DT_CHARPTR,  NoValidation},
 778                 {"options",     "fixedpart",    "",                     new ValueContainerChar (this->FixedPart),               DT_CHARPTR,  NoValidation},
 779                 {"performance", "netbuffersize","10240",                new ValueContainerInt  (&this->NetBufferSize),          DT_INTEGER,  ValidateNetBufferSize},
 780                 {"performance", "maxwho",       "128",                  new ValueContainerInt  (&this->MaxWhoResults),          DT_INTEGER,  ValidateMaxWho},
 781                 {"options",     "allowhalfop",  "0",                    new ValueContainerBool (&this->AllowHalfop),            DT_BOOLEAN,  ValidateHalfOp},
 782                 {"dns",         "server",       "",                     new ValueContainerChar (this->DNSServer),               DT_IPADDRESS,DNSServerValidator},
 783                 {"dns",         "timeout",      "5",                    new ValueContainerInt  (&this->dns_timeout),            DT_INTEGER,  NoValidation},
 784                 {"options",     "moduledir",    MOD_PATH,               new ValueContainerChar (this->ModPath),                 DT_CHARPTR,  NoValidation},
 785                 {"disabled",    "commands",     "",                     new ValueContainerChar (this->DisabledCommands),        DT_CHARPTR,  NoValidation},
 786                 {"disabled",    "usermodes",    "",                     new ValueContainerChar (disabledumodes),                DT_CHARPTR,  ValidateDisabledUModes},
 787                 {"disabled",    "chanmodes",    "",                     new ValueContainerChar (disabledcmodes),                DT_CHARPTR,  ValidateDisabledCModes},
 788                 {"disabled",    "fakenonexistant",      "0",            new ValueContainerBool (&this->DisabledDontExist),              DT_BOOLEAN,  NoValidation},
 789
 790                 {"security",            "runasuser",    "",             new ValueContainerChar(this->SetUser),                          DT_CHARPTR, NoValidation},
 791                 {"security",            "runasgroup",   "",             new ValueContainerChar(this->SetGroup),                         DT_CHARPTR, NoValidation},
 792                 {"security",    "userstats",    "",                     new ValueContainerChar (this->UserStats),               DT_CHARPTR,  NoValidation},
 793                 {"security",    "customversion","",                     new ValueContainerChar (this->CustomVersion),           DT_CHARPTR,  NoValidation},
 794                 {"security",    "hidesplits",   "0",                    new ValueContainerBool (&this->HideSplits),             DT_BOOLEAN,  NoValidation},
 795                 {"security",    "hidebans",     "0",                    new ValueContainerBool (&this->HideBans),               DT_BOOLEAN,  NoValidation},
 796                 {"security",    "hidewhois",    "",                     new ValueContainerChar (this->HideWhoisServer),         DT_NOSPACES, NoValidation},
 797                 {"security",    "hidekills",    "",                     new ValueContainerChar (this->HideKillsServer),         DT_NOSPACES,  NoValidation},
 798                 {"security",    "operspywhois", "0",                    new ValueContainerBool (&this->OperSpyWhois),           DT_BOOLEAN,  NoValidation},
 799                 {"security",    "restrictbannedusers",  "1",            new ValueContainerBool (&this->RestrictBannedUsers),            DT_BOOLEAN,  NoValidation},
 800                 {"security",    "genericoper",  "0",                    new ValueContainerBool (&this->GenericOper),            DT_BOOLEAN,  NoValidation},
 801                 {"performance", "nouserdns",    "0",                    new ValueContainerBool (&this->NoUserDns),              DT_BOOLEAN,  NoValidation},
 802                 {"options",     "syntaxhints",  "0",                    new ValueContainerBool (&this->SyntaxHints),            DT_BOOLEAN,  NoValidation},
 803                 {"options",     "cyclehosts",   "0",                    new ValueContainerBool (&this->CycleHosts),             DT_BOOLEAN,  NoValidation},
 804                 {"options",     "ircumsgprefix","0",                    new ValueContainerBool (&this->UndernetMsgPrefix),      DT_BOOLEAN,  NoValidation},
 805                 {"security",    "announceinvites", "1",                 new ValueContainerChar (announceinvites),               DT_CHARPTR,  ValidateInvite},
 806                 {"options",     "hostintopic",  "1",                    new ValueContainerBool (&this->FullHostInTopic),        DT_BOOLEAN,  NoValidation},
 807                 {"security",    "hidemodes",    "",                     new ValueContainerChar (hidemodes),                     DT_CHARPTR,  ValidateModeLists},
 808                 {"options",     "exemptchanops","",                     new ValueContainerChar (exemptchanops),                 DT_CHARPTR,  ValidateExemptChanOps},
 809                 {"security",    "maxtargets",   "20",                   new ValueContainerUInt (&this->MaxTargets),             DT_INTEGER,  ValidateMaxTargets},
 810                 {"options",     "defaultmodes", "nt",                   new ValueContainerChar (this->DefaultModes),            DT_CHARPTR,  NoValidation},
 811                 {"pid",         "file",         "",                     new ValueContainerChar (this->PID),                     DT_CHARPTR,  NoValidation},
 812                 {"whowas",      "groupsize",    "10",                   new ValueContainerInt  (&this->WhoWasGroupSize),        DT_INTEGER,  NoValidation},
 813                 {"whowas",      "maxgroups",    "10240",                new ValueContainerInt  (&this->WhoWasMaxGroups),        DT_INTEGER,  NoValidation},
 814                 {"whowas",      "maxkeep",      "3600",                 new ValueContainerChar (maxkeep),                       DT_CHARPTR,  ValidateWhoWas},
 815                 {"die",         "value",        "",                     new ValueContainerChar (this->DieValue),                DT_CHARPTR,  NoValidation},
 816                 {"channels",    "users",        "20",                   new ValueContainerUInt (&this->MaxChans),               DT_INTEGER,  NoValidation},
 817                 {"channels",    "opers",        "60",                   new ValueContainerUInt (&this->OperMaxChans),           DT_INTEGER,  NoValidation},
 818                 {"cidr",        "ipv4clone",    "32",                   new ValueContainerInt (&this->c_ipv4_range),            DT_INTEGER,  NoValidation},
 819                 {"cidr",        "ipv6clone",    "128",                  new ValueContainerInt (&this->c_ipv6_range),            DT_INTEGER,  NoValidation},
 820                 {"limits",      "maxnick",      "32",                   new ValueContainerST (&this->Limits.NickMax),           DT_INTEGER,  NoValidation},
 821                 {"limits",      "maxchan",      "64",                   new ValueContainerST (&this->Limits.ChanMax),           DT_INTEGER,  NoValidation},
 822                 {"limits",      "maxmodes",     "20",                   new ValueContainerST (&this->Limits.MaxModes),          DT_INTEGER,  NoValidation},
 823                 {"limits",      "maxident",     "11",                   new ValueContainerST (&this->Limits.IdentMax),          DT_INTEGER,  NoValidation},
 824                 {"limits",      "maxquit",      "255",                  new ValueContainerST (&this->Limits.MaxQuit),           DT_INTEGER,  NoValidation},
 825                 {"limits",      "maxtopic",     "307",                  new ValueContainerST (&this->Limits.MaxTopic),          DT_INTEGER,  NoValidation},
 826                 {"limits",      "maxkick",      "255",                  new ValueContainerST (&this->Limits.MaxKick),           DT_INTEGER,  NoValidation},
 827                 {"limits",      "maxgecos",     "128",                  new ValueContainerST (&this->Limits.MaxGecos),          DT_INTEGER,  NoValidation},
 828                 {"limits",      "maxaway",      "200",                  new ValueContainerST (&this->Limits.MaxAway),           DT_INTEGER,  NoValidation},
 829                 {"options",     "invitebypassmodes",    "1",                    new ValueContainerBool (&this->InvBypassModes),         DT_BOOLEAN,  NoValidation},
 830                 {NULL,          NULL,           NULL,                   NULL,                                                   DT_NOTHING,  NoValidation}
 831         };
 832
 833
 834         /* These tags can occur multiple times, and therefore they have special code to read them
 835          * which is different to the code for reading the singular tags listed above.
 836          */
 837         MultiConfig MultiValues[] = {
 838
 839                 {"connect",
 840                                 {"allow",       "deny",         "password",     "timeout",      "pingfreq",
 841                                 "sendq",        "recvq",        "localmax",     "globalmax",    "port",
 842                                 "name",         "parent",       "maxchans",     "limit",        "hash",
 843                                 NULL},
 844                                 {"",            "",                             "",                     "",                     "120",
 845                                  "",            "",                             "3",            "3",            "0",
 846                                  "",            "",                             "0",        "0",                "",
 847                                  NULL},
 848                                 {DT_IPADDRESS|DT_ALLOW_WILD, DT_IPADDRESS|DT_ALLOW_WILD, DT_CHARPTR,    DT_INTEGER,     DT_INTEGER,
 849                                 DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,
 850                                 DT_NOSPACES,    DT_NOSPACES,    DT_INTEGER,     DT_INTEGER,     DT_CHARPTR},
 851                                 InitConnect, DoConnect, DoneConnect},
 852
 853                 {"uline",
 854                                 {"server",      "silent",       NULL},
 855                                 {"",            "0",            NULL},
 856                                 {DT_HOSTNAME,   DT_BOOLEAN},
 857                                 InitULine,DoULine,DoneULine},
 858
 859                 {"banlist",
 860                                 {"chan",        "limit",        NULL},
 861                                 {"",            "",             NULL},
 862                                 {DT_CHARPTR,    DT_INTEGER},
 863                                 InitMaxBans, DoMaxBans, DoneMaxBans},
 864
 865                 {"module",
 866                                 {"name",        NULL},
 867                                 {"",            NULL},
 868                                 {DT_CHARPTR},
 869                                 InitModule, DoModule, DoneModule},
 870
 871                 {"badip",
 872                                 {"reason",      "ipmask",       NULL},
 873                                 {"No reason",   "",             NULL},
 874                                 {DT_CHARPTR,    DT_IPADDRESS|DT_ALLOW_WILD},
 875                                 InitXLine, DoZLine, DoneConfItem},
 876
 877                 {"badnick",
 878                                 {"reason",      "nick",         NULL},
 879                                 {"No reason",   "",             NULL},
 880                                 {DT_CHARPTR,    DT_CHARPTR},
 881                                 InitXLine, DoQLine, DoneConfItem},
 882
 883                 {"badhost",
 884                                 {"reason",      "host",         NULL},
 885                                 {"No reason",   "",             NULL},
 886                                 {DT_CHARPTR,    DT_CHARPTR},
 887                                 InitXLine, DoKLine, DoneConfItem},
 888
 889                 {"exception",
 890                                 {"reason",      "host",         NULL},
 891                                 {"No reason",   "",             NULL},
 892                                 {DT_CHARPTR,    DT_CHARPTR},
 893                                 InitXLine, DoELine, DoneELine},
 894
 895                 {"type",
 896                                 {"name",        "classes",      NULL},
 897                                 {"",            "",             NULL},
 898                                 {DT_NOSPACES,   DT_CHARPTR},
 899                                 InitTypes, DoType, DoneClassesAndTypes},
 900
 901                 {"class",
 902                                 {"name",        "commands",     "usermodes",    "chanmodes",    "privs",        NULL},
 903                                 {"",            "",                             "",                             "",                     "",                     NULL},
 904                                 {DT_NOSPACES,   DT_CHARPTR,     DT_CHARPTR,     DT_CHARPTR, DT_CHARPTR},
 905                                 InitClasses, DoClass, DoneClassesAndTypes},
 906
 907                 {NULL,
 908                                 {NULL},
 909                                 {NULL},
 910                                 {0},
 911                                 NULL, NULL, NULL}
 912         };
 913
 914         /* Load and parse the config file, if there are any errors then explode */
 915
 916         if (!this->DoInclude(ServerInstance->ConfigFileName))
 917         {
 918                 valid = false;
 919                 return;
 920         }
 921
 922         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 923         try
 924         {
 925                 /* Check we dont have more than one of singular tags, or any of them missing
 926                  */
 927                 for (int Index = 0; Once[Index]; Index++)
 928                         if (!CheckOnce(Once[Index]))
 929                                 return;
 930
 931                 for (int Index = 0; ChangedConfig[Index].tag; Index++)
 932                 {
 933                         char item[MAXBUF];
 934                         *item = 0;
 935                         if (ConfValue(ChangedConfig[Index].tag, ChangedConfig[Index].value, "", 0, item, MAXBUF, true) || *item)
 936                                 throw CoreException(std::string("Your configuration contains a deprecated value: <") + ChangedConfig[Index].tag + ":" + ChangedConfig[Index].value + "> - " + ChangedConfig[Index].reason);
 937                 }
 938
 939                 /* Read the values of all the tags which occur once or not at all, and call their callbacks.
 940                  */
 941                 for (int Index = 0; Values[Index].tag; ++Index)
 942                 {
 943                         char item[MAXBUF];
 944                         int dt = Values[Index].datatype;
 945                         bool allow_newlines = ((dt & DT_ALLOW_NEWLINE) > 0);
 946                         bool allow_wild = ((dt & DT_ALLOW_WILD) > 0);
 947                         dt &= ~DT_ALLOW_NEWLINE;
 948                         dt &= ~DT_ALLOW_WILD;
 949
 950                         ConfValue(Values[Index].tag, Values[Index].value, Values[Index].default_value, 0, item, MAXBUF, allow_newlines);
 951                         ValueItem vi(item);
 952
 953                         if (!Values[Index].validation_function(this, Values[Index].tag, Values[Index].value, vi))
 954                                 throw CoreException("One or more values in your configuration file failed to validate. Please see your ircd.log for more information.");
 955
 956                         switch (dt)
 957                         {
 958                                 case DT_NOSPACES:
 959                                 {
 960                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 961                                         this->ValidateNoSpaces(vi.GetString(), Values[Index].tag, Values[Index].value);
 962                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 963                                 }
 964                                 break;
 965                                 case DT_HOSTNAME:
 966                                 {
 967                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 968                                         this->ValidateHostname(vi.GetString(), Values[Index].tag, Values[Index].value);
 969                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 970                                 }
 971                                 break;
 972                                 case DT_IPADDRESS:
 973                                 {
 974                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 975                                         this->ValidateIP(vi.GetString(), Values[Index].tag, Values[Index].value, allow_wild);
 976                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 977                                 }
 978                                 break;
 979                                 case DT_CHANNEL:
 980                                 {
 981                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 982                                         if (*(vi.GetString()) && !ServerInstance->IsChannel(vi.GetString(), MAXBUF))
 983                                         {
 984                                                 throw CoreException("The value of <"+std::string(Values[Index].tag)+":"+Values[Index].value+"> is not a valid channel name");
 985                                         }
 986                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 987                                 }
 988                                 break;
 989                                 case DT_CHARPTR:
 990                                 {
 991                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 992                                         /* Make sure we also copy the null terminator */
 993                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 994                                 }
 995                                 break;
 996                                 case DT_INTEGER:
 997                                 {
 998                                         int val = vi.GetInteger();
 999                                         ValueContainerInt* vci = (ValueContainerInt*)Values[Index].val;
1000                                         vci->Set(&val, sizeof(int));
1001                                 }
1002                                 break;
1003                                 case DT_BOOLEAN:
1004                                 {
1005                                         bool val = vi.GetBool();
1006                                         ValueContainerBool* vcb = (ValueContainerBool*)Values[Index].val;
1007                                         vcb->Set(&val, sizeof(bool));
1008                                 }
1009                                 break;
1010                                 default:
1011                                         /* You don't want to know what happens if someones bad code sends us here. */
1012                                 break;
1013                         }
1014                         /* We're done with this now */
1015                         delete Values[Index].val;
1016                 }
1017
1018                 /* Read the multiple-tag items (class tags, connect tags, etc)
1019                  * and call the callbacks associated with them. We have three
1020                  * callbacks for these, a 'start', 'item' and 'end' callback.
1021                  */
1022                 for (int Index = 0; MultiValues[Index].tag; ++Index)
1023                 {
1024                         MultiValues[Index].init_function(this, MultiValues[Index].tag);
1025
1026                         int number_of_tags = ConfValueEnum(MultiValues[Index].tag);
1027
1028                         for (int tagnum = 0; tagnum < number_of_tags; ++tagnum)
1029                         {
1030                                 ValueList vl;
1031                                 for (int valuenum = 0; (MultiValues[Index].items[valuenum]) && (valuenum < MAX_VALUES_PER_TAG); ++valuenum)
1032                                 {
1033                                         int dt = MultiValues[Index].datatype[valuenum];
1034                                         bool allow_newlines =  ((dt & DT_ALLOW_NEWLINE) > 0);
1035                                         bool allow_wild = ((dt & DT_ALLOW_WILD) > 0);
1036                                         dt &= ~DT_ALLOW_NEWLINE;
1037                                         dt &= ~DT_ALLOW_WILD;
1038
1039                                         /* We catch and rethrow any exception here just so we can free our mutex
1040                                          */
1041                                         try
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                                                                 this->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                                                                 this->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                                                                 this->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                                                         default:
1111                                                                 /* Someone was smoking craq if we got here, and we're all gonna die. */
1112                                                         break;
1113                                                 }
1114                                         }
1115                                         catch (CoreException &e)
1116                                         {
1117                                                 throw e;
1118                                         }
1119                                 }
1120                                 MultiValues[Index].validation_function(this, MultiValues[Index].tag, (char**)MultiValues[Index].items, vl, MultiValues[Index].datatype);
1121                         }
1122                         MultiValues[Index].finish_function(this, MultiValues[Index].tag);
1123                 }
1124
1125                 /* Finalise the limits, increment them all by one so that we can just put assign(str, 0, val)
1126                  * rather than assign(str, 0, val + 1)
1127                  */
1128                 Limits.Finalise();
1129
1130         }
1131
1132         catch (CoreException &ce)
1133         {
1134                 errstr << ce.GetReason();
1135                 valid = false;
1136                 return;
1137         }
1138
1139         for (int i = 0; i < ConfValueEnum("type"); ++i)
1140         {
1141                 char item[MAXBUF], classn[MAXBUF], classes[MAXBUF];
1142                 std::string classname;
1143                 ConfValue("type", "classes", "", i, classes, MAXBUF, false);
1144                 irc::spacesepstream str(classes);
1145                 ConfValue("type", "name", "", i, item, MAXBUF, false);
1146                 while (str.GetToken(classname))
1147                 {
1148                         std::string lost;
1149                         bool foundclass = false;
1150                         for (int j = 0; j < ConfValueEnum("class"); ++j)
1151                         {
1152                                 ConfValue("class", "name", "", j, classn, MAXBUF, false);
1153                                 if (!strcmp(classn, classname.c_str()))
1154                                 {
1155                                         foundclass = true;
1156                                         break;
1157                                 }
1158                         }
1159                         if (!foundclass)
1160                         {
1161                                 char msg[MAXBUF];
1162                                 snprintf(msg, MAXBUF, " Warning: Oper type '%s' has a missing class named '%s', this does nothing!\n",
1163                                         item, classname.c_str());
1164                                 errstr << msg;
1165                         }
1166                 }
1167         }
1168
1169 }
1170
1171 void ServerConfig::Apply(ServerConfig* old, const std::string &useruid)
1172 {
1173         int rem = 0, add = 0;
1174         // write once here, to try it out and make sure its ok
1175         ServerInstance->WritePID(this->PID);
1176
1177         FailedPortList pl;
1178         ServerInstance->BindPorts(pl);
1179
1180         if (pl.size())
1181         {
1182                 errstr << "Not all your client ports could be bound.\nThe following port(s) failed to bind:\n";
1183
1184                 int j = 1;
1185                 for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
1186                 {
1187                         char buf[MAXBUF];
1188                         snprintf(buf, MAXBUF, "%d.   Address: %s   Reason: %s\n", j, i->first.empty() ? "<all>" : i->first.c_str(), i->second.c_str());
1189                         errstr << buf;
1190                 }
1191         }
1192
1193         User* user = useruid.empty() ? NULL : ServerInstance->FindNick(useruid);
1194
1195         while (errstr.good())
1196         {
1197                 std::string line;
1198                 getline(errstr, line, '\n');
1199                 if (user)
1200                         user->WriteServ("NOTICE %s :*** %s", user->nick.c_str(), line.c_str());
1201                 else
1202                         ServerInstance->SNO->WriteGlobalSno('a', line);
1203         }
1204
1205         errstr.clear();
1206         errstr.str().clear();
1207
1208         /* No old configuration -> initial boot, nothing more to do here */
1209         if (!old)
1210                 return;
1211
1212         /*
1213          * These values can only be set on boot. Keep their old values.
1214          */
1215         memcpy(this->ServerName, old->ServerName, sizeof(this->ServerName));
1216         memcpy(this->sid, old->sid, sizeof(this->sid));
1217
1218         if (!removed_modules.empty())
1219         {
1220                 for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
1221                 {
1222                         if (ServerInstance->Modules->Unload(removing->c_str()))
1223                         {
1224                                 ServerInstance->SNO->WriteToSnoMask('a', "*** REHASH UNLOADED MODULE: %s",removing->c_str());
1225
1226                                 if (user)
1227                                         user->WriteNumeric(RPL_UNLOADEDMODULE, "%s %s :Module %s successfully unloaded.",user->nick.c_str(), removing->c_str(), removing->c_str());
1228                                 else
1229                                         ServerInstance->SNO->WriteToSnoMask('a', "Module %s successfully unloaded.", removing->c_str());
1230
1231                                 rem++;
1232                         }
1233                         else
1234                         {
1235                                 if (user)
1236                                         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());
1237                                 else
1238                                          ServerInstance->SNO->WriteToSnoMask('a', "Failed to unload module %s: %s", removing->c_str(), ServerInstance->Modules->LastError().c_str());
1239                         }
1240                 }
1241         }
1242
1243         if (!added_modules.empty())
1244         {
1245                 for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
1246                 {
1247                         if (ServerInstance->Modules->Load(adding->c_str()))
1248                         {
1249                                 ServerInstance->SNO->WriteToSnoMask('a', "*** REHASH LOADED MODULE: %s",adding->c_str());
1250                                 if (user)
1251                                         user->WriteNumeric(RPL_LOADEDMODULE, "%s %s :Module %s successfully loaded.",user->nick.c_str(), adding->c_str(), adding->c_str());
1252                                 else
1253                                         ServerInstance->SNO->WriteToSnoMask('a', "Module %s successfully loaded.", adding->c_str());
1254
1255                                 add++;
1256                         }
1257                         else
1258                         {
1259                                 if (user)
1260                                         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());
1261                                 else
1262                                         ServerInstance->SNO->WriteToSnoMask('a', "Failed to load module %s: %s", adding->c_str(), ServerInstance->Modules->LastError().c_str());
1263                         }
1264                 }
1265         }
1266
1267         if (user)
1268                 user->WriteServ("NOTICE %s :*** Successfully rehashed server.", user->nick.c_str());
1269         else
1270                 ServerInstance->SNO->WriteToSnoMask('a', "*** Successfully rehashed server.");
1271 }
1272
1273 bool ServerConfig::LoadConf(FILE* &conf, const char* filename)
1274 {
1275         std::string line;
1276         char ch;
1277         long linenumber = 1;
1278         long last_successful_parse = 1;
1279         bool in_tag;
1280         bool in_quote;
1281         bool in_comment;
1282         int character_count = 0;
1283
1284         in_tag = false;
1285         in_quote = false;
1286         in_comment = false;
1287
1288         ServerInstance->Logs->Log("CONFIG", DEBUG, "Reading %s", filename);
1289
1290         /* Check if the file open failed first */
1291         if (!conf)
1292         {
1293                 errstr << "LoadConf: Couldn't open config file: " << filename << std::endl;
1294                 return false;
1295         }
1296
1297         for (unsigned int t = 0; t < include_stack.size(); t++)
1298         {
1299                 if (std::string(filename) == include_stack[t])
1300                 {
1301                         errstr << "File " << filename << " is included recursively (looped inclusion)." << std::endl;
1302                         return false;
1303                 }
1304         }
1305
1306         /* It's not already included, add it to the list of files we've loaded */
1307         include_stack.push_back(filename);
1308
1309         /* Start reading characters... */
1310         while ((ch = fgetc(conf)) != EOF)
1311         {
1312                 /*
1313                  * Fix for moronic windows issue spotted by Adremelech.
1314                  * Some windows editors save text files as utf-16, which is
1315                  * a total pain in the ass to parse. Users should save in the
1316                  * right config format! If we ever see a file where the first
1317                  * byte is 0xFF or 0xFE, or the second is 0xFF or 0xFE, then
1318                  * this is most likely a utf-16 file. Bail out and insult user.
1319                  */
1320                 if ((character_count++ < 2) && (ch == '\xFF' || ch == '\xFE'))
1321                 {
1322                         errstr << "File " << filename << " cannot be read, as it is encoded in braindead UTF-16. Save your file as plain ASCII!" << std::endl;
1323                         return false;
1324                 }
1325
1326                 /*
1327                  * Here we try and get individual tags on separate lines,
1328                  * this would be so easy if we just made people format
1329                  * their config files like that, but they don't so...
1330                  * We check for a '<' and then know the line is over when
1331                  * we get a '>' not inside quotes. If we find two '<' and
1332                  * no '>' then die with an error.
1333                  */
1334
1335                 if ((ch == '#') && !in_quote)
1336                         in_comment = true;
1337
1338                 switch (ch)
1339                 {
1340                         case '\n':
1341                                 if (in_quote)
1342                                         line += '\n';
1343                                 linenumber++;
1344                         case '\r':
1345                                 if (!in_quote)
1346                                         in_comment = false;
1347                         case '\0':
1348                                 continue;
1349                         case '\t':
1350                                 ch = ' ';
1351                 }
1352
1353                 if(in_comment)
1354                         continue;
1355
1356                 /* XXX: Added by Brain, May 1st 2006 - Escaping of characters.
1357                  * Note that this WILL NOT usually allow insertion of newlines,
1358                  * because a newline is two characters long. Use it primarily to
1359                  * insert the " symbol.
1360                  *
1361                  * Note that this also involves a further check when parsing the line,
1362                  * which can be found below.
1363                  */
1364                 if ((ch == '\\') && (in_quote) && (in_tag))
1365                 {
1366                         line += ch;
1367                         char real_character;
1368                         if (!feof(conf))
1369                         {
1370                                 real_character = fgetc(conf);
1371                                 if (real_character == 'n')
1372                                         real_character = '\n';
1373                                 line += real_character;
1374                                 continue;
1375                         }
1376                         else
1377                         {
1378                                 errstr << "End of file after a \\, what did you want to escape?: " << filename << ":" << linenumber << std::endl;
1379                                 return false;
1380                         }
1381                 }
1382
1383                 if (ch != '\r')
1384                         line += ch;
1385
1386                 if ((ch != '<') && (!in_tag) && (!in_comment) && (ch > ' ') && (ch != 9))
1387                 {
1388                         errstr << "You have stray characters beyond the tag which starts at " << filename << ":" << last_successful_parse << std::endl;
1389                         return false;
1390                 }
1391
1392                 if (ch == '<')
1393                 {
1394                         if (in_tag)
1395                         {
1396                                 if (!in_quote)
1397                                 {
1398                                         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;
1399                                         return false;
1400                                 }
1401                         }
1402                         else
1403                         {
1404                                 if (in_quote)
1405                                 {
1406                                         errstr << "Parser error: Inside a quote but not within the last valid tag, which was opened at: " << filename << ":" << last_successful_parse << std::endl;
1407                                         return false;
1408                                 }
1409                                 else
1410                                 {
1411                                         // errstr << "Opening new config tag on line " << linenumber << std::endl;
1412                                         in_tag = true;
1413                                 }
1414                         }
1415                 }
1416                 else if (ch == '"')
1417                 {
1418                         if (in_tag)
1419                         {
1420                                 if (in_quote)
1421                                 {
1422                                         // errstr << "Closing quote in config tag on line " << linenumber << std::endl;
1423                                         in_quote = false;
1424                                 }
1425                                 else
1426                                 {
1427                                         // errstr << "Opening quote in config tag on line " << linenumber << std::endl;
1428                                         in_quote = true;
1429                                 }
1430                         }
1431                         else
1432                         {
1433                                 if (in_quote)
1434                                 {
1435                                         errstr << "The tag immediately after the one at " << filename << ":" << last_successful_parse << " has a missing closing \" symbol. Please check this." << std::endl;
1436                                 }
1437                                 else
1438                                 {
1439                                         errstr << "You have opened a quote (\") beyond the tag at " << filename << ":" << last_successful_parse << " without opening a new tag. Please check this." << std::endl;
1440                                 }
1441                         }
1442                 }
1443                 else if (ch == '>')
1444                 {
1445                         if (!in_quote)
1446                         {
1447                                 if (in_tag)
1448                                 {
1449                                         // errstr << "Closing config tag on line " << linenumber << std::endl;
1450                                         in_tag = false;
1451
1452                                         /*
1453                                          * If this finds an <include> then ParseLine can simply call
1454                                          * LoadConf() and load the included config into the same ConfigDataHash
1455                                          */
1456                                         long bl = linenumber;
1457                                         if (!this->ParseLine(filename, line, linenumber))
1458                                                 return false;
1459                                         last_successful_parse = linenumber;
1460
1461                                         linenumber = bl;
1462
1463                                         line.clear();
1464                                 }
1465                                 else
1466                                 {
1467                                         errstr << "You forgot to close the tag which comes immediately after the one at " << filename << ":" << last_successful_parse << std::endl;
1468                                         return false;
1469                                 }
1470                         }
1471                 }
1472         }
1473
1474         /* 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 */
1475         if (in_comment || in_quote)
1476         {
1477                 errstr << "Reached end of file whilst still inside a quoted section or tag. This is most likely an error or there \
1478                         is a newline missing from the end of the file: " << filename << ":" << linenumber << std::endl;
1479         }
1480
1481         return true;
1482 }
1483
1484
1485 bool ServerConfig::LoadConf(FILE* &conf, const std::string &filename)
1486 {
1487         return this->LoadConf(conf, filename.c_str());
1488 }
1489
1490 bool ServerConfig::ParseLine(const std::string &filename, std::string &line, long &linenumber)
1491 {
1492         std::string tagname;
1493         std::string current_key;
1494         std::string current_value;
1495         KeyValList results;
1496         char last_char = 0;
1497         bool got_name;
1498         bool got_key;
1499         bool in_quote;
1500
1501         got_name = got_key = in_quote = false;
1502
1503         for(std::string::iterator c = line.begin(); c != line.end(); c++)
1504         {
1505                 if (!got_name)
1506                 {
1507                         /* We don't know the tag name yet. */
1508
1509                         if (*c != ' ')
1510                         {
1511                                 if (*c != '<')
1512                                 {
1513                                         if ((*c >= 'a' && *c <= 'z') || (*c >= 'A' && *c <='Z') || (*c >= '0' && *c <= '9') || *c == '_')
1514                                                 tagname += *c;
1515                                         else
1516                                         {
1517                                                 errstr << "Invalid character in value name of tag: '" << *c << "' in value '" << tagname << "' in filename: " << filename << ":" << linenumber << std::endl;
1518                                                 return false;
1519                                         }
1520                                 }
1521                         }
1522                         else
1523                         {
1524                                 /* We got to a space, we should have the tagname now. */
1525                                 if(tagname.length())
1526                                 {
1527                                         got_name = true;
1528                                 }
1529                         }
1530                 }
1531                 else
1532                 {
1533                         /* We have the tag name */
1534                         if (!got_key)
1535                         {
1536                                 /* We're still reading the key name */
1537                                 if ((*c != '=') && (*c != '>'))
1538                                 {
1539                                         if (*c != ' ')
1540                                         {
1541                                                 if ((*c >= 'a' && *c <= 'z') || (*c >= 'A' && *c <='Z') || (*c >= '0' && *c <= '9') || *c == '_')
1542                                                         current_key += *c;
1543                                                 else
1544                                                 {
1545                                                         errstr << "Invalid character in key: '" << *c << "' in key '" << current_key << "' in filename: " << filename << ":" << linenumber << std::endl;
1546                                                         return false;
1547                                                 }
1548                                         }
1549                                 }
1550                                 else
1551                                 {
1552                                         /* We got an '=', end of the key name. */
1553                                         got_key = true;
1554                                 }
1555                         }
1556                         else
1557                         {
1558                                 /* We have the key name, now we're looking for quotes and the value */
1559
1560                                 /* Correctly handle escaped characters here.
1561                                  * See the XXX'ed section above.
1562                                  */
1563                                 if ((*c == '\\') && (in_quote))
1564                                 {
1565                                         c++;
1566                                         if (*c == 'n')
1567                                                 current_value += '\n';
1568                                         else
1569                                                 current_value += *c;
1570                                         continue;
1571                                 }
1572                                 else if ((*c == '\\') && (!in_quote))
1573                                 {
1574                                         errstr << "You can't have an escape sequence outside of a quoted section: " << filename << ":" << linenumber << std::endl;
1575                                         return false;
1576                                 }
1577                                 else if ((*c == '\n') && (in_quote))
1578                                 {
1579                                         /* Got a 'real' \n, treat it as part of the value */
1580                                         current_value += '\n';
1581                                         continue;
1582                                 }
1583                                 else if ((*c == '\r') && (in_quote))
1584                                 {
1585                                         /* Got a \r, drop it */
1586                                         continue;
1587                                 }
1588
1589                                 if (*c == '"')
1590                                 {
1591                                         if (!in_quote)
1592                                         {
1593                                                 /* We're not already in a quote. */
1594                                                 in_quote = true;
1595                                         }
1596                                         else
1597                                         {
1598                                                 /* Leaving the quotes, we have the current value */
1599                                                 results.push_back(KeyVal(current_key, current_value));
1600
1601                                                 // std::cout << "<" << tagname << ":" << current_key << "> " << current_value << std::endl;
1602
1603                                                 in_quote = false;
1604                                                 got_key = false;
1605
1606                                                 if ((tagname == "include") && (current_key == "file"))
1607                                                 {
1608                                                         if (!this->DoInclude(current_value))
1609                                                                 return false;
1610                                                 }
1611                                                 else if ((tagname == "include") && (current_key == "executable"))
1612                                                 {
1613                                                         /* Pipe an executable and use its stdout as config data */
1614                                                         if (!this->DoPipe(current_value))
1615                                                                 return false;
1616                                                 }
1617
1618                                                 current_key.clear();
1619                                                 current_value.clear();
1620                                         }
1621                                 }
1622                                 else
1623                                 {
1624                                         if (in_quote)
1625                                         {
1626                                                 last_char = *c;
1627                                                 current_value += *c;
1628                                         }
1629                                 }
1630                         }
1631                 }
1632         }
1633
1634         /* Finished parsing the tag, add it to the config hash */
1635         config_data.insert(std::pair<std::string, KeyValList > (tagname, results));
1636
1637         return true;
1638 }
1639
1640 bool ServerConfig::DoPipe(const std::string &file)
1641 {
1642         FILE* conf = popen(file.c_str(), "r");
1643         bool ret = false;
1644
1645         if (conf)
1646         {
1647                 ret = LoadConf(conf, file.c_str());
1648                 pclose(conf);
1649         }
1650         else
1651                 errstr << "Couldn't execute: " << file << std::endl;
1652
1653         return ret;
1654 }
1655
1656 bool ServerConfig::StartsWithWindowsDriveLetter(const std::string &path)
1657 {
1658         return (path.length() > 2 && isalpha(path[0]) && path[1] == ':');
1659 }
1660
1661 bool ServerConfig::DoInclude(const std::string &file)
1662 {
1663         std::string confpath;
1664         std::string newfile;
1665         std::string::size_type pos;
1666
1667         confpath = ServerInstance->ConfigFileName;
1668         newfile = file;
1669
1670         std::replace(newfile.begin(),newfile.end(),'\\','/');
1671         std::replace(confpath.begin(),confpath.end(),'\\','/');
1672
1673         if ((newfile[0] != '/') && (!StartsWithWindowsDriveLetter(newfile)))
1674         {
1675                 if((pos = confpath.rfind("/")) != std::string::npos)
1676                 {
1677                         /* Leaves us with just the path */
1678                         newfile = confpath.substr(0, pos) + std::string("/") + newfile;
1679                 }
1680                 else
1681                 {
1682                         errstr << "Couldn't get config path from: " << ServerInstance->ConfigFileName << std::endl;
1683                         return false;
1684                 }
1685         }
1686
1687         FILE* conf = fopen(newfile.c_str(), "r");
1688         bool ret = false;
1689
1690         if (conf)
1691         {
1692                 ret = LoadConf(conf, newfile);
1693                 fclose(conf);
1694         }
1695         else
1696                 errstr << "Couldn't open config file: " << file << std::endl;
1697
1698         return ret;
1699 }
1700
1701 bool ServerConfig::ConfValue(const char* tag, const char* var, int index, char* result, int length, bool allow_linefeeds)
1702 {
1703         return ConfValue(tag, var, "", index, result, length, allow_linefeeds);
1704 }
1705
1706 bool ServerConfig::ConfValue(const char* tag, const char* var, const char* default_value, int index, char* result, int length, bool allow_linefeeds)
1707 {
1708         std::string value;
1709         bool r = ConfValue(std::string(tag), std::string(var), std::string(default_value), index, value, allow_linefeeds);
1710         strlcpy(result, value.c_str(), length);
1711         return r;
1712 }
1713
1714 bool ServerConfig::ConfValue(const std::string &tag, const std::string &var, int index, std::string &result, bool allow_linefeeds)
1715 {
1716         return ConfValue(tag, var, "", index, result, allow_linefeeds);
1717 }
1718
1719 bool ServerConfig::ConfValue(const std::string &tag, const std::string &var, const std::string &default_value, int index, std::string &result, bool allow_linefeeds)
1720 {
1721         ConfigDataHash::size_type pos = index;
1722         if (pos < config_data.count(tag))
1723         {
1724                 ConfigDataHash::iterator iter = config_data.find(tag);
1725
1726                 for(int i = 0; i < index; i++)
1727                         iter++;
1728
1729                 for(KeyValList::iterator j = iter->second.begin(); j != iter->second.end(); j++)
1730                 {
1731                         if(j->first == var)
1732                         {
1733                                 if ((!allow_linefeeds) && (j->second.find('\n') != std::string::npos))
1734                                 {
1735                                         ServerInstance->Logs->Log("CONFIG",DEFAULT, "Value of <" + tag + ":" + var+ "> contains a linefeed, and linefeeds in this value are not permitted -- stripped to spaces.");
1736                                         for (std::string::iterator n = j->second.begin(); n != j->second.end(); n++)
1737                                                 if (*n == '\n')
1738                                                         *n = ' ';
1739                                 }
1740                                 else
1741                                 {
1742                                         result = j->second;
1743                                         return true;
1744                                 }
1745                         }
1746                 }
1747                 if (!default_value.empty())
1748                 {
1749                         result = default_value;
1750                         return true;
1751                 }
1752         }
1753         else if (pos == 0)
1754         {
1755                 if (!default_value.empty())
1756                 {
1757                         result = default_value;
1758                         return true;
1759                 }
1760         }
1761         return false;
1762 }
1763
1764 bool ServerConfig::ConfValueInteger(const char* tag, const char* var, int index, int &result)
1765 {
1766         return ConfValueInteger(std::string(tag), std::string(var), "", index, result);
1767 }
1768
1769 bool ServerConfig::ConfValueInteger(const char* tag, const char* var, const char* default_value, int index, int &result)
1770 {
1771         return ConfValueInteger(std::string(tag), std::string(var), std::string(default_value), index, result);
1772 }
1773
1774 bool ServerConfig::ConfValueInteger(const std::string &tag, const std::string &var, int index, int &result)
1775 {
1776         return ConfValueInteger(tag, var, "", index, result);
1777 }
1778
1779 bool ServerConfig::ConfValueInteger(const std::string &tag, const std::string &var, const std::string &default_value, int index, int &result)
1780 {
1781         std::string value;
1782         std::istringstream stream;
1783         bool r = ConfValue(tag, var, default_value, index, value);
1784         stream.str(value);
1785         if(!(stream >> result))
1786                 return false;
1787         else
1788         {
1789                 if (!value.empty())
1790                 {
1791                         if (value.substr(0,2) == "0x")
1792                         {
1793                                 char* endptr;
1794
1795                                 value.erase(0,2);
1796                                 result = strtol(value.c_str(), &endptr, 16);
1797
1798                                 /* No digits found */
1799                                 if (endptr == value.c_str())
1800                                         return false;
1801                         }
1802                         else
1803                         {
1804                                 char denominator = *(value.end() - 1);
1805                                 switch (toupper(denominator))
1806                                 {
1807                                         case 'K':
1808                                                 /* Kilobytes -> bytes */
1809                                                 result = result * 1024;
1810                                         break;
1811                                         case 'M':
1812                                                 /* Megabytes -> bytes */
1813                                                 result = result * 1024 * 1024;
1814                                         break;
1815                                         case 'G':
1816                                                 /* Gigabytes -> bytes */
1817                                                 result = result * 1024 * 1024 * 1024;
1818                                         break;
1819                                 }
1820                         }
1821                 }
1822         }
1823         return r;
1824 }
1825
1826
1827 bool ServerConfig::ConfValueBool(const char* tag, const char* var, int index)
1828 {
1829         return ConfValueBool(std::string(tag), std::string(var), "", index);
1830 }
1831
1832 bool ServerConfig::ConfValueBool(const char* tag, const char* var, const char* default_value, int index)
1833 {
1834         return ConfValueBool(std::string(tag), std::string(var), std::string(default_value), index);
1835 }
1836
1837 bool ServerConfig::ConfValueBool(const std::string &tag, const std::string &var, int index)
1838 {
1839         return ConfValueBool(tag, var, "", index);
1840 }
1841
1842 bool ServerConfig::ConfValueBool(const std::string &tag, const std::string &var, const std::string &default_value, int index)
1843 {
1844         std::string result;
1845         if(!ConfValue(tag, var, default_value, index, result))
1846                 return false;
1847
1848         return ((result == "yes") || (result == "true") || (result == "1"));
1849 }
1850
1851 int ServerConfig::ConfValueEnum(const char* tag)
1852 {
1853         return config_data.count(tag);
1854 }
1855
1856 int ServerConfig::ConfValueEnum(const std::string &tag)
1857 {
1858         return config_data.count(tag);
1859 }
1860
1861 int ServerConfig::ConfVarEnum(const char* tag, int index)
1862 {
1863         return ConfVarEnum(std::string(tag), index);
1864 }
1865
1866 int ServerConfig::ConfVarEnum(const std::string &tag, int index)
1867 {
1868         ConfigDataHash::size_type pos = index;
1869
1870         if (pos < config_data.count(tag))
1871         {
1872                 ConfigDataHash::const_iterator iter = config_data.find(tag);
1873
1874                 for(int i = 0; i < index; i++)
1875                         iter++;
1876
1877                 return iter->second.size();
1878         }
1879
1880         return 0;
1881 }
1882
1883 /** Read the contents of a file located by `fname' into a file_cache pointed at by `F'.
1884  */
1885 bool ServerConfig::ReadFile(file_cache &F, const char* fname)
1886 {
1887         if (!fname || !*fname)
1888                 return false;
1889
1890         FILE* file = NULL;
1891         char linebuf[MAXBUF];
1892
1893         F.clear();
1894
1895         if ((*fname != '/') && (*fname != '\\') && (!StartsWithWindowsDriveLetter(fname)))
1896         {
1897                 std::string::size_type pos;
1898                 std::string confpath = ServerInstance->ConfigFileName;
1899                 std::string newfile = fname;
1900
1901                 if (((pos = confpath.rfind("/"))) != std::string::npos)
1902                         newfile = confpath.substr(0, pos) + std::string("/") + fname;
1903                 else if (((pos = confpath.rfind("\\"))) != std::string::npos)
1904                         newfile = confpath.substr(0, pos) + std::string("\\") + fname;
1905
1906                 ServerInstance->Logs->Log("config", DEBUG, "Filename: %s", newfile.c_str());
1907
1908                 if (!FileExists(newfile.c_str()))
1909                         return false;
1910                 file =  fopen(newfile.c_str(), "r");
1911         }
1912         else
1913         {
1914                 if (!FileExists(fname))
1915                         return false;
1916                 file =  fopen(fname, "r");
1917         }
1918
1919         if (file)
1920         {
1921                 while (!feof(file))
1922                 {
1923                         if (fgets(linebuf, sizeof(linebuf), file))
1924                                 linebuf[strlen(linebuf)-1] = 0;
1925                         else
1926                                 *linebuf = 0;
1927
1928                         F.push_back(*linebuf ? linebuf : " ");
1929                 }
1930
1931                 fclose(file);
1932         }
1933         else
1934                 return false;
1935
1936         return true;
1937 }
1938
1939 bool ServerConfig::FileExists(const char* file)
1940 {
1941         struct stat sb;
1942         if (stat(file, &sb) == -1)
1943                 return false;
1944
1945         if ((sb.st_mode & S_IFDIR) > 0)
1946                 return false;
1947
1948         FILE *input;
1949         if ((input = fopen (file, "r")) == NULL)
1950                 return false;
1951         else
1952         {
1953                 fclose(input);
1954                 return true;
1955         }
1956 }
1957
1958 char* ServerConfig::CleanFilename(char* name)
1959 {
1960         char* p = name + strlen(name);
1961         while ((p != name) && (*p != '/') && (*p != '\\')) p--;
1962         return (p != name ? ++p : p);
1963 }
1964
1965
1966 std::string ServerConfig::GetFullProgDir()
1967 {
1968         char buffer[PATH_MAX];
1969 #ifdef WINDOWS
1970         /* Windows has specific api calls to get the exe path that never fail.
1971          * For once, windows has something of use, compared to the POSIX code
1972          * for this, this is positively neato.
1973          */
1974         if (GetModuleFileName(NULL, buffer, MAX_PATH))
1975         {
1976                 std::string fullpath = buffer;
1977                 std::string::size_type n = fullpath.rfind("\\inspircd.exe");
1978                 return std::string(fullpath, 0, n);
1979         }
1980 #else
1981         // Get the current working directory
1982         if (getcwd(buffer, PATH_MAX))
1983         {
1984                 std::string remainder = this->argv[0];
1985
1986                 /* Does argv[0] start with /? its a full path, use it */
1987                 if (remainder[0] == '/')
1988                 {
1989                         std::string::size_type n = remainder.rfind("/inspircd");
1990                         return std::string(remainder, 0, n);
1991                 }
1992
1993                 std::string fullpath = std::string(buffer) + "/" + remainder;
1994                 std::string::size_type n = fullpath.rfind("/inspircd");
1995                 return std::string(fullpath, 0, n);
1996         }
1997 #endif
1998         return "/";
1999 }
2000
2001 InspIRCd* ServerConfig::GetInstance()
2002 {
2003         return ServerInstance;
2004 }
2005
2006 std::string ServerConfig::GetSID()
2007 {
2008         return sid;
2009 }
2010
2011 ValueItem::ValueItem(int value)
2012 {
2013         std::stringstream n;
2014         n << value;
2015         v = n.str();
2016 }
2017
2018 ValueItem::ValueItem(bool value)
2019 {
2020         std::stringstream n;
2021         n << value;
2022         v = n.str();
2023 }
2024
2025 ValueItem::ValueItem(const char* value)
2026 {
2027         v = value;
2028 }
2029
2030 void ValueItem::Set(const char* value)
2031 {
2032         v = value;
2033 }
2034
2035 void ValueItem::Set(int value)
2036 {
2037         std::stringstream n;
2038         n << value;
2039         v = n.str();
2040 }
2041
2042 int ValueItem::GetInteger()
2043 {
2044         if (v.empty())
2045                 return 0;
2046         return atoi(v.c_str());
2047 }
2048
2049 char* ValueItem::GetString()
2050 {
2051         return (char*)v.c_str();
2052 }
2053
2054 bool ValueItem::GetBool()
2055 {
2056         return (GetInteger() || v == "yes" || v == "true");
2057 }
2058
2059
2060
2061
2062 /*
2063  * XXX should this be in a class? -- w00t
2064  */
2065 bool InitTypes(ServerConfig* conf, const char*)
2066 {
2067         conf->opertypes.clear();
2068         return true;
2069 }
2070
2071 /*
2072  * XXX should this be in a class? -- w00t
2073  */
2074 bool InitClasses(ServerConfig* conf, const char*)
2075 {
2076         if (conf->operclass.size())
2077         {
2078                 for (operclass_t::iterator n = conf->operclass.begin(); n != conf->operclass.end(); n++)
2079                 {
2080                         if (n->second.commandlist)
2081                                 delete[] n->second.commandlist;
2082                         if (n->second.cmodelist)
2083                                 delete[] n->second.cmodelist;
2084                         if (n->second.umodelist)
2085                                 delete[] n->second.umodelist;
2086                         if (n->second.privs)
2087                                 delete[] n->second.privs;
2088                 }
2089         }
2090
2091         conf->operclass.clear();
2092         return true;
2093 }
2094
2095 /*
2096  * XXX should this be in a class? -- w00t
2097  */
2098 bool DoType(ServerConfig* conf, const char*, char**, ValueList &values, int*)
2099 {
2100         const char* TypeName = values[0].GetString();
2101         const char* Classes = values[1].GetString();
2102
2103         conf->opertypes[TypeName] = std::string(Classes);
2104         return true;
2105 }
2106
2107 /*
2108  * XXX should this be in a class? -- w00t
2109  */
2110 bool DoClass(ServerConfig* conf, const char* tag, char**, ValueList &values, int*)
2111 {
2112         const char* ClassName = values[0].GetString();
2113         const char* CommandList = values[1].GetString();
2114         const char* UModeList = values[2].GetString();
2115         const char* CModeList = values[3].GetString();
2116         const char *PrivsList = values[4].GetString();
2117
2118         for (const char* c = UModeList; *c; ++c)
2119         {
2120                 if ((*c < 'A' || *c > 'z') && *c != '*')
2121                 {
2122                         throw CoreException("Character " + std::string(1, *c) + " is not a valid mode in <class:usermodes>");
2123                 }
2124         }
2125         for (const char* c = CModeList; *c; ++c)
2126         {
2127                 if ((*c < 'A' || *c > 'z') && *c != '*')
2128                 {
2129                         throw CoreException("Character " + std::string(1, *c) + " is not a valid mode in <class:chanmodes>");
2130                 }
2131         }
2132
2133         conf->operclass[ClassName].commandlist = strnewdup(CommandList);
2134         conf->operclass[ClassName].umodelist = strnewdup(UModeList);
2135         conf->operclass[ClassName].cmodelist = strnewdup(CModeList);
2136         conf->operclass[ClassName].privs = strnewdup(PrivsList);
2137         return true;
2138 }
2139
2140 /*
2141  * XXX should this be in a class? -- w00t
2142  */
2143 bool DoneClassesAndTypes(ServerConfig*, const char*)
2144 {
2145         return true;
2146 }
2147
2148
2149
2150 bool InitXLine(ServerConfig* conf, const char* tag)
2151 {
2152         return true;
2153 }
2154
2155 bool DoZLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
2156 {
2157         const char* reason = values[0].GetString();
2158         const char* ipmask = values[1].GetString();
2159
2160         ZLine* zl = new ZLine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, ipmask);
2161         if (!conf->GetInstance()->XLines->AddLine(zl, NULL))
2162                 delete zl;
2163
2164         return true;
2165 }
2166
2167 bool DoQLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
2168 {
2169         const char* reason = values[0].GetString();
2170         const char* nick = values[1].GetString();
2171
2172         QLine* ql = new QLine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, nick);
2173         if (!conf->GetInstance()->XLines->AddLine(ql, NULL))
2174                 delete ql;
2175
2176         return true;
2177 }
2178
2179 bool DoKLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
2180 {
2181         const char* reason = values[0].GetString();
2182         const char* host = values[1].GetString();
2183
2184         XLineManager* xlm = conf->GetInstance()->XLines;
2185
2186         IdentHostPair ih = xlm->IdentSplit(host);
2187
2188         KLine* kl = new KLine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, ih.first.c_str(), ih.second.c_str());
2189         if (!xlm->AddLine(kl, NULL))
2190                 delete kl;
2191         return true;
2192 }
2193
2194 bool DoELine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
2195 {
2196         const char* reason = values[0].GetString();
2197         const char* host = values[1].GetString();
2198
2199         XLineManager* xlm = conf->GetInstance()->XLines;
2200
2201         IdentHostPair ih = xlm->IdentSplit(host);
2202
2203         ELine* el = new ELine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, ih.first.c_str(), ih.second.c_str());
2204         if (!xlm->AddLine(el, NULL))
2205                 delete el;
2206         return true;
2207 }
2208
2209 // this should probably be moved to configreader, but atm it relies on CheckELines above.
2210 bool DoneELine(ServerConfig* conf, const char* tag)
2211 {
2212         for (std::vector<User*>::const_iterator u2 = conf->GetInstance()->Users->local_users.begin(); u2 != conf->GetInstance()->Users->local_users.end(); u2++)
2213         {
2214                 User* u = (User*)(*u2);
2215                 u->exempt = false;
2216         }
2217
2218         conf->GetInstance()->XLines->CheckELines();
2219         return true;
2220 }
2221
2222 void ConfigReaderThread::Run()
2223 {
2224         Config = new ServerConfig(ServerInstance);
2225         Config->Read();
2226         done = true;
2227 }
2228
2229 void ConfigReaderThread::Finish()
2230 {
2231         ServerConfig* old = ServerInstance->Config;
2232         ServerInstance->Config = this->Config;
2233         Config->Apply(old, TheUserUID);
2234         delete old;
2235 }