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::Read()
 711 {
 712         static char maxkeep[MAXBUF];    /* Temporary buffer for WhoWasMaxKeep value */
 713         static char hidemodes[MAXBUF];  /* Modes to not allow listing from users below halfop */
 714         static char exemptchanops[MAXBUF];      /* Exempt channel ops from these modes */
 715         static char announceinvites[MAXBUF];    /* options:announceinvites setting */
 716         static char disabledumodes[MAXBUF]; /* Disabled usermodes */
 717         static char disabledcmodes[MAXBUF]; /* Disabled chanmodes */
 718         valid = true;
 719         /* std::ostringstream::clear() does not clear the string itself, only the error flags. */
 720         errstr.clear();
 721         errstr.str().clear();
 722         include_stack.clear();
 723
 724         /* These tags MUST occur and must ONLY occur once in the config file */
 725         static const char* Once[] = { "server", "admin", "files", "power", "options", NULL };
 726
 727         Deprecated ChangedConfig[] = {
 728                 {"options",     "hidelinks",            "has been moved to <security:hidelinks> as of 1.2a3"},
 729                 {"options",     "hidewhois",            "has been moved to <security:hidewhois> as of 1.2a3"},
 730                 {"options",     "userstats",            "has been moved to <security:userstats> as of 1.2a3"},
 731                 {"options",     "customversion",        "has been moved to <security:customversion> as of 1.2a3"},
 732                 {"options",     "hidesplits",           "has been moved to <security:hidesplits> as of 1.2a3"},
 733                 {"options",     "hidebans",             "has been moved to <security:hidebans> as of 1.2a3"},
 734                 {"options",     "hidekills",            "has been moved to <security:hidekills> as of 1.2a3"},
 735                 {"options",     "operspywhois",         "has been moved to <security:operspywhois> as of 1.2a3"},
 736                 {"options",     "announceinvites",      "has been moved to <security:announceinvites> as of 1.2a3"},
 737                 {"options",     "hidemodes",            "has been moved to <security:hidemodes> as of 1.2a3"},
 738                 {"options",     "maxtargets",           "has been moved to <security:maxtargets> as of 1.2a3"},
 739                 {"options",     "nouserdns",            "has been moved to <performance:nouserdns> as of 1.2a3"},
 740                 {"options",     "maxwho",               "has been moved to <performance:maxwho> as of 1.2a3"},
 741                 {"options",     "softlimit",            "has been moved to <performance:softlimit> as of 1.2a3"},
 742                 {"options",     "somaxconn",            "has been moved to <performance:somaxconn> as of 1.2a3"},
 743                 {"options",     "netbuffersize",        "has been moved to <performance:netbuffersize> as of 1.2a3"},
 744                 {"options",     "maxwho",               "has been moved to <performance:maxwho> as of 1.2a3"},
 745                 {"options",     "loglevel",             "1.2 does not use the loglevel value. Please define <log> tags instead."},
 746                 {NULL,          NULL,                   NULL}
 747         };
 748
 749         /* These tags can occur ONCE or not at all */
 750         InitialConfig Values[] = {
 751                 {"performance", "softlimit",    "0",                    new ValueContainerUInt (&this->SoftLimit),              DT_INTEGER,  ValidateSoftLimit},
 752                 {"performance", "somaxconn",    SOMAXCONN_S,            new ValueContainerInt  (&this->MaxConn),                DT_INTEGER,  ValidateMaxConn},
 753                 {"options",     "moronbanner",  "Youre banned!",        new ValueContainerChar (this->MoronBanner),             DT_CHARPTR,  NoValidation},
 754                 {"server",      "name",         "",                     new ValueContainerChar (this->ServerName),              DT_HOSTNAME, ValidateServerName},
 755                 {"server",      "description",  "Configure Me",         new ValueContainerChar (this->ServerDesc),              DT_CHARPTR,  NoValidation},
 756                 {"server",      "network",      "Network",              new ValueContainerChar (this->Network),                 DT_NOSPACES, NoValidation},
 757                 {"server",      "id",           "",                     new ValueContainerChar (this->sid),                     DT_CHARPTR,  ValidateSID},
 758                 {"admin",       "name",         "",                     new ValueContainerChar (this->AdminName),               DT_CHARPTR,  NoValidation},
 759                 {"admin",       "email",        "Mis@configu.red",      new ValueContainerChar (this->AdminEmail),              DT_CHARPTR,  NoValidation},
 760                 {"admin",       "nick",         "Misconfigured",        new ValueContainerChar (this->AdminNick),               DT_CHARPTR,  NoValidation},
 761                 {"files",       "motd",         "",                     new ValueContainerChar (this->motd),                    DT_CHARPTR,  ValidateMotd},
 762                 {"files",       "rules",        "",                     new ValueContainerChar (this->rules),                   DT_CHARPTR,  ValidateRules},
 763                 {"power",       "diepass",      "",                     new ValueContainerChar (this->diepass),                 DT_CHARPTR,  ValidateNotEmpty},
 764                 {"power",       "pause",        "",                     new ValueContainerInt  (&this->DieDelay),               DT_INTEGER,  NoValidation},
 765                 {"power",       "hash",         "",                     new ValueContainerChar (this->powerhash),               DT_CHARPTR,  NoValidation},
 766                 {"power",       "restartpass",  "",                     new ValueContainerChar (this->restartpass),             DT_CHARPTR,  ValidateNotEmpty},
 767                 {"options",     "prefixquit",   "",                     new ValueContainerChar (this->PrefixQuit),              DT_CHARPTR,  NoValidation},
 768                 {"options",     "suffixquit",   "",                     new ValueContainerChar (this->SuffixQuit),              DT_CHARPTR,  NoValidation},
 769                 {"options",     "fixedquit",    "",                     new ValueContainerChar (this->FixedQuit),               DT_CHARPTR,  NoValidation},
 770                 {"options",     "prefixpart",   "",                     new ValueContainerChar (this->PrefixPart),              DT_CHARPTR,  NoValidation},
 771                 {"options",     "suffixpart",   "",                     new ValueContainerChar (this->SuffixPart),              DT_CHARPTR,  NoValidation},
 772                 {"options",     "fixedpart",    "",                     new ValueContainerChar (this->FixedPart),               DT_CHARPTR,  NoValidation},
 773                 {"performance", "netbuffersize","10240",                new ValueContainerInt  (&this->NetBufferSize),          DT_INTEGER,  ValidateNetBufferSize},
 774                 {"performance", "maxwho",       "128",                  new ValueContainerInt  (&this->MaxWhoResults),          DT_INTEGER,  ValidateMaxWho},
 775                 {"options",     "allowhalfop",  "0",                    new ValueContainerBool (&this->AllowHalfop),            DT_BOOLEAN,  ValidateHalfOp},
 776                 {"dns",         "server",       "",                     new ValueContainerChar (this->DNSServer),               DT_IPADDRESS,DNSServerValidator},
 777                 {"dns",         "timeout",      "5",                    new ValueContainerInt  (&this->dns_timeout),            DT_INTEGER,  NoValidation},
 778                 {"options",     "moduledir",    MOD_PATH,               new ValueContainerChar (this->ModPath),                 DT_CHARPTR,  NoValidation},
 779                 {"disabled",    "commands",     "",                     new ValueContainerChar (this->DisabledCommands),        DT_CHARPTR,  NoValidation},
 780                 {"disabled",    "usermodes",    "",                     new ValueContainerChar (disabledumodes),                DT_CHARPTR,  ValidateDisabledUModes},
 781                 {"disabled",    "chanmodes",    "",                     new ValueContainerChar (disabledcmodes),                DT_CHARPTR,  ValidateDisabledCModes},
 782                 {"disabled",    "fakenonexistant",      "0",            new ValueContainerBool (&this->DisabledDontExist),              DT_BOOLEAN,  NoValidation},
 783
 784                 {"security",            "runasuser",    "",             new ValueContainerChar(this->SetUser),                          DT_CHARPTR, NoValidation},
 785                 {"security",            "runasgroup",   "",             new ValueContainerChar(this->SetGroup),                         DT_CHARPTR, NoValidation},
 786                 {"security",    "userstats",    "",                     new ValueContainerChar (this->UserStats),               DT_CHARPTR,  NoValidation},
 787                 {"security",    "customversion","",                     new ValueContainerChar (this->CustomVersion),           DT_CHARPTR,  NoValidation},
 788                 {"security",    "hidesplits",   "0",                    new ValueContainerBool (&this->HideSplits),             DT_BOOLEAN,  NoValidation},
 789                 {"security",    "hidebans",     "0",                    new ValueContainerBool (&this->HideBans),               DT_BOOLEAN,  NoValidation},
 790                 {"security",    "hidewhois",    "",                     new ValueContainerChar (this->HideWhoisServer),         DT_NOSPACES, NoValidation},
 791                 {"security",    "hidekills",    "",                     new ValueContainerChar (this->HideKillsServer),         DT_NOSPACES,  NoValidation},
 792                 {"security",    "operspywhois", "0",                    new ValueContainerBool (&this->OperSpyWhois),           DT_BOOLEAN,  NoValidation},
 793                 {"security",    "restrictbannedusers",  "1",            new ValueContainerBool (&this->RestrictBannedUsers),            DT_BOOLEAN,  NoValidation},
 794                 {"security",    "genericoper",  "0",                    new ValueContainerBool (&this->GenericOper),            DT_BOOLEAN,  NoValidation},
 795                 {"performance", "nouserdns",    "0",                    new ValueContainerBool (&this->NoUserDns),              DT_BOOLEAN,  NoValidation},
 796                 {"options",     "syntaxhints",  "0",                    new ValueContainerBool (&this->SyntaxHints),            DT_BOOLEAN,  NoValidation},
 797                 {"options",     "cyclehosts",   "0",                    new ValueContainerBool (&this->CycleHosts),             DT_BOOLEAN,  NoValidation},
 798                 {"options",     "ircumsgprefix","0",                    new ValueContainerBool (&this->UndernetMsgPrefix),      DT_BOOLEAN,  NoValidation},
 799                 {"security",    "announceinvites", "1",                 new ValueContainerChar (announceinvites),               DT_CHARPTR,  ValidateInvite},
 800                 {"options",     "hostintopic",  "1",                    new ValueContainerBool (&this->FullHostInTopic),        DT_BOOLEAN,  NoValidation},
 801                 {"security",    "hidemodes",    "",                     new ValueContainerChar (hidemodes),                     DT_CHARPTR,  ValidateModeLists},
 802                 {"options",     "exemptchanops","",                     new ValueContainerChar (exemptchanops),                 DT_CHARPTR,  ValidateExemptChanOps},
 803                 {"security",    "maxtargets",   "20",                   new ValueContainerUInt (&this->MaxTargets),             DT_INTEGER,  ValidateMaxTargets},
 804                 {"options",     "defaultmodes", "nt",                   new ValueContainerChar (this->DefaultModes),            DT_CHARPTR,  NoValidation},
 805                 {"pid",         "file",         "",                     new ValueContainerChar (this->PID),                     DT_CHARPTR,  NoValidation},
 806                 {"whowas",      "groupsize",    "10",                   new ValueContainerInt  (&this->WhoWasGroupSize),        DT_INTEGER,  NoValidation},
 807                 {"whowas",      "maxgroups",    "10240",                new ValueContainerInt  (&this->WhoWasMaxGroups),        DT_INTEGER,  NoValidation},
 808                 {"whowas",      "maxkeep",      "3600",                 new ValueContainerChar (maxkeep),                       DT_CHARPTR,  ValidateWhoWas},
 809                 {"die",         "value",        "",                     new ValueContainerChar (this->DieValue),                DT_CHARPTR,  NoValidation},
 810                 {"channels",    "users",        "20",                   new ValueContainerUInt (&this->MaxChans),               DT_INTEGER,  NoValidation},
 811                 {"channels",    "opers",        "60",                   new ValueContainerUInt (&this->OperMaxChans),           DT_INTEGER,  NoValidation},
 812                 {"cidr",        "ipv4clone",    "32",                   new ValueContainerInt (&this->c_ipv4_range),            DT_INTEGER,  NoValidation},
 813                 {"cidr",        "ipv6clone",    "128",                  new ValueContainerInt (&this->c_ipv6_range),            DT_INTEGER,  NoValidation},
 814                 {"limits",      "maxnick",      "32",                   new ValueContainerST (&this->Limits.NickMax),           DT_INTEGER,  NoValidation},
 815                 {"limits",      "maxchan",      "64",                   new ValueContainerST (&this->Limits.ChanMax),           DT_INTEGER,  NoValidation},
 816                 {"limits",      "maxmodes",     "20",                   new ValueContainerST (&this->Limits.MaxModes),          DT_INTEGER,  NoValidation},
 817                 {"limits",      "maxident",     "11",                   new ValueContainerST (&this->Limits.IdentMax),          DT_INTEGER,  NoValidation},
 818                 {"limits",      "maxquit",      "255",                  new ValueContainerST (&this->Limits.MaxQuit),           DT_INTEGER,  NoValidation},
 819                 {"limits",      "maxtopic",     "307",                  new ValueContainerST (&this->Limits.MaxTopic),          DT_INTEGER,  NoValidation},
 820                 {"limits",      "maxkick",      "255",                  new ValueContainerST (&this->Limits.MaxKick),           DT_INTEGER,  NoValidation},
 821                 {"limits",      "maxgecos",     "128",                  new ValueContainerST (&this->Limits.MaxGecos),          DT_INTEGER,  NoValidation},
 822                 {"limits",      "maxaway",      "200",                  new ValueContainerST (&this->Limits.MaxAway),           DT_INTEGER,  NoValidation},
 823                 {"options",     "invitebypassmodes",    "1",                    new ValueContainerBool (&this->InvBypassModes),         DT_BOOLEAN,  NoValidation},
 824                 {NULL,          NULL,           NULL,                   NULL,                                                   DT_NOTHING,  NoValidation}
 825         };
 826
 827
 828         /* These tags can occur multiple times, and therefore they have special code to read them
 829          * which is different to the code for reading the singular tags listed above.
 830          */
 831         MultiConfig MultiValues[] = {
 832
 833                 {"connect",
 834                                 {"allow",       "deny",         "password",     "timeout",      "pingfreq",
 835                                 "sendq",        "recvq",        "localmax",     "globalmax",    "port",
 836                                 "name",         "parent",       "maxchans",     "limit",        "hash",
 837                                 NULL},
 838                                 {"",            "",                             "",                     "",                     "120",
 839                                  "",            "",                             "3",            "3",            "0",
 840                                  "",            "",                             "0",        "0",                "",
 841                                  NULL},
 842                                 {DT_IPADDRESS|DT_ALLOW_WILD, DT_IPADDRESS|DT_ALLOW_WILD, DT_CHARPTR,    DT_INTEGER,     DT_INTEGER,
 843                                 DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,
 844                                 DT_NOSPACES,    DT_NOSPACES,    DT_INTEGER,     DT_INTEGER,     DT_CHARPTR},
 845                                 InitConnect, DoConnect, DoneConnect},
 846
 847                 {"uline",
 848                                 {"server",      "silent",       NULL},
 849                                 {"",            "0",            NULL},
 850                                 {DT_HOSTNAME,   DT_BOOLEAN},
 851                                 InitULine,DoULine,DoneULine},
 852
 853                 {"banlist",
 854                                 {"chan",        "limit",        NULL},
 855                                 {"",            "",             NULL},
 856                                 {DT_CHARPTR,    DT_INTEGER},
 857                                 InitMaxBans, DoMaxBans, DoneMaxBans},
 858
 859                 {"module",
 860                                 {"name",        NULL},
 861                                 {"",            NULL},
 862                                 {DT_CHARPTR},
 863                                 InitModule, DoModule, DoneModule},
 864
 865                 {"badip",
 866                                 {"reason",      "ipmask",       NULL},
 867                                 {"No reason",   "",             NULL},
 868                                 {DT_CHARPTR,    DT_IPADDRESS|DT_ALLOW_WILD},
 869                                 InitXLine, DoZLine, DoneConfItem},
 870
 871                 {"badnick",
 872                                 {"reason",      "nick",         NULL},
 873                                 {"No reason",   "",             NULL},
 874                                 {DT_CHARPTR,    DT_CHARPTR},
 875                                 InitXLine, DoQLine, DoneConfItem},
 876
 877                 {"badhost",
 878                                 {"reason",      "host",         NULL},
 879                                 {"No reason",   "",             NULL},
 880                                 {DT_CHARPTR,    DT_CHARPTR},
 881                                 InitXLine, DoKLine, DoneConfItem},
 882
 883                 {"exception",
 884                                 {"reason",      "host",         NULL},
 885                                 {"No reason",   "",             NULL},
 886                                 {DT_CHARPTR,    DT_CHARPTR},
 887                                 InitXLine, DoELine, DoneELine},
 888
 889                 {"type",
 890                                 {"name",        "classes",      NULL},
 891                                 {"",            "",             NULL},
 892                                 {DT_NOSPACES,   DT_CHARPTR},
 893                                 InitTypes, DoType, DoneClassesAndTypes},
 894
 895                 {"class",
 896                                 {"name",        "commands",     "usermodes",    "chanmodes",    "privs",        NULL},
 897                                 {"",            "",                             "",                             "",                     "",                     NULL},
 898                                 {DT_NOSPACES,   DT_CHARPTR,     DT_CHARPTR,     DT_CHARPTR, DT_CHARPTR},
 899                                 InitClasses, DoClass, DoneClassesAndTypes},
 900
 901                 {NULL,
 902                                 {NULL},
 903                                 {NULL},
 904                                 {0},
 905                                 NULL, NULL, NULL}
 906         };
 907
 908         /* Load and parse the config file, if there are any errors then explode */
 909
 910         if (!this->DoInclude(ServerInstance->ConfigFileName))
 911         {
 912                 valid = false;
 913                 return;
 914         }
 915
 916         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 917         try
 918         {
 919                 /* Check we dont have more than one of singular tags, or any of them missing
 920                  */
 921                 for (int Index = 0; Once[Index]; Index++)
 922                         if (!CheckOnce(Once[Index]))
 923                                 return;
 924
 925                 for (int Index = 0; ChangedConfig[Index].tag; Index++)
 926                 {
 927                         char item[MAXBUF];
 928                         *item = 0;
 929                         if (ConfValue(ChangedConfig[Index].tag, ChangedConfig[Index].value, "", 0, item, MAXBUF, true) || *item)
 930                                 throw CoreException(std::string("Your configuration contains a deprecated value: <") + ChangedConfig[Index].tag + ":" + ChangedConfig[Index].value + "> - " + ChangedConfig[Index].reason);
 931                 }
 932
 933                 /* Read the values of all the tags which occur once or not at all, and call their callbacks.
 934                  */
 935                 for (int Index = 0; Values[Index].tag; ++Index)
 936                 {
 937                         char item[MAXBUF];
 938                         int dt = Values[Index].datatype;
 939                         bool allow_newlines = ((dt & DT_ALLOW_NEWLINE) > 0);
 940                         bool allow_wild = ((dt & DT_ALLOW_WILD) > 0);
 941                         dt &= ~DT_ALLOW_NEWLINE;
 942                         dt &= ~DT_ALLOW_WILD;
 943
 944                         ConfValue(Values[Index].tag, Values[Index].value, Values[Index].default_value, 0, item, MAXBUF, allow_newlines);
 945                         ValueItem vi(item);
 946
 947                         if (!Values[Index].validation_function(this, Values[Index].tag, Values[Index].value, vi))
 948                                 throw CoreException("One or more values in your configuration file failed to validate. Please see your ircd.log for more information.");
 949
 950                         switch (dt)
 951                         {
 952                                 case DT_NOSPACES:
 953                                 {
 954                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 955                                         this->ValidateNoSpaces(vi.GetString(), Values[Index].tag, Values[Index].value);
 956                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 957                                 }
 958                                 break;
 959                                 case DT_HOSTNAME:
 960                                 {
 961                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 962                                         this->ValidateHostname(vi.GetString(), Values[Index].tag, Values[Index].value);
 963                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 964                                 }
 965                                 break;
 966                                 case DT_IPADDRESS:
 967                                 {
 968                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 969                                         this->ValidateIP(vi.GetString(), Values[Index].tag, Values[Index].value, allow_wild);
 970                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 971                                 }
 972                                 break;
 973                                 case DT_CHANNEL:
 974                                 {
 975                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 976                                         if (*(vi.GetString()) && !ServerInstance->IsChannel(vi.GetString(), MAXBUF))
 977                                         {
 978                                                 throw CoreException("The value of <"+std::string(Values[Index].tag)+":"+Values[Index].value+"> is not a valid channel name");
 979                                         }
 980                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 981                                 }
 982                                 break;
 983                                 case DT_CHARPTR:
 984                                 {
 985                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 986                                         /* Make sure we also copy the null terminator */
 987                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 988                                 }
 989                                 break;
 990                                 case DT_INTEGER:
 991                                 {
 992                                         int val = vi.GetInteger();
 993                                         ValueContainerInt* vci = (ValueContainerInt*)Values[Index].val;
 994                                         vci->Set(&val, sizeof(int));
 995                                 }
 996                                 break;
 997                                 case DT_BOOLEAN:
 998                                 {
 999                                         bool val = vi.GetBool();
1000                                         ValueContainerBool* vcb = (ValueContainerBool*)Values[Index].val;
1001                                         vcb->Set(&val, sizeof(bool));
1002                                 }
1003                                 break;
1004                                 default:
1005                                         /* You don't want to know what happens if someones bad code sends us here. */
1006                                 break;
1007                         }
1008                         /* We're done with this now */
1009                         delete Values[Index].val;
1010                 }
1011
1012                 /* Read the multiple-tag items (class tags, connect tags, etc)
1013                  * and call the callbacks associated with them. We have three
1014                  * callbacks for these, a 'start', 'item' and 'end' callback.
1015                  */
1016                 for (int Index = 0; MultiValues[Index].tag; ++Index)
1017                 {
1018                         MultiValues[Index].init_function(this, MultiValues[Index].tag);
1019
1020                         int number_of_tags = ConfValueEnum(MultiValues[Index].tag);
1021
1022                         for (int tagnum = 0; tagnum < number_of_tags; ++tagnum)
1023                         {
1024                                 ValueList vl;
1025                                 for (int valuenum = 0; (MultiValues[Index].items[valuenum]) && (valuenum < MAX_VALUES_PER_TAG); ++valuenum)
1026                                 {
1027                                         int dt = MultiValues[Index].datatype[valuenum];
1028                                         bool allow_newlines =  ((dt & DT_ALLOW_NEWLINE) > 0);
1029                                         bool allow_wild = ((dt & DT_ALLOW_WILD) > 0);
1030                                         dt &= ~DT_ALLOW_NEWLINE;
1031                                         dt &= ~DT_ALLOW_WILD;
1032
1033                                         switch (dt)
1034                                         {
1035                                                 case DT_NOSPACES:
1036                                                 {
1037                                                         char item[MAXBUF];
1038                                                         if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1039                                                                 vl.push_back(ValueItem(item));
1040                                                         else
1041                                                                 vl.push_back(ValueItem(""));
1042                                                         this->ValidateNoSpaces(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum]);
1043                                                 }
1044                                                 break;
1045                                                 case DT_HOSTNAME:
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->ValidateHostname(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum]);
1053                                                 }
1054                                                 break;
1055                                                 case DT_IPADDRESS:
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->ValidateIP(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum], allow_wild);
1063                                                 }
1064                                                 break;
1065                                                 case DT_CHANNEL:
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                                                         if (!ServerInstance->IsChannel(vl[vl.size()-1].GetString(), MAXBUF))
1073                                                                 throw CoreException("The value of <"+std::string(MultiValues[Index].tag)+":"+MultiValues[Index].items[valuenum]+"> number "+ConvToStr(tagnum + 1)+" is not a valid channel name");
1074                                                 }
1075                                                 break;
1076                                                 case DT_CHARPTR:
1077                                                 {
1078                                                         char item[MAXBUF];
1079                                                         if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1080                                                                 vl.push_back(ValueItem(item));
1081                                                         else
1082                                                                 vl.push_back(ValueItem(""));
1083                                                 }
1084                                                 break;
1085                                                 case DT_INTEGER:
1086                                                 {
1087                                                         int item = 0;
1088                                                         if (ConfValueInteger(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item))
1089                                                                 vl.push_back(ValueItem(item));
1090                                                         else
1091                                                                 vl.push_back(ValueItem(0));
1092                                                 }
1093                                                 break;
1094                                                 case DT_BOOLEAN:
1095                                                 {
1096                                                         bool item = ConfValueBool(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum);
1097                                                         vl.push_back(ValueItem(item));
1098                                                 }
1099                                                 break;
1100                                                 default:
1101                                                         /* Someone was smoking craq if we got here, and we're all gonna die. */
1102                                                 break;
1103                                         }
1104                                 }
1105                                 MultiValues[Index].validation_function(this, MultiValues[Index].tag, (char**)MultiValues[Index].items, vl, MultiValues[Index].datatype);
1106                         }
1107                         MultiValues[Index].finish_function(this, MultiValues[Index].tag);
1108                 }
1109
1110                 /* Finalise the limits, increment them all by one so that we can just put assign(str, 0, val)
1111                  * rather than assign(str, 0, val + 1)
1112                  */
1113                 Limits.Finalise();
1114
1115         }
1116
1117         catch (CoreException &ce)
1118         {
1119                 errstr << ce.GetReason();
1120                 valid = false;
1121                 return;
1122         }
1123
1124         for (int i = 0; i < ConfValueEnum("type"); ++i)
1125         {
1126                 char item[MAXBUF], classn[MAXBUF], classes[MAXBUF];
1127                 std::string classname;
1128                 ConfValue("type", "classes", "", i, classes, MAXBUF, false);
1129                 irc::spacesepstream str(classes);
1130                 ConfValue("type", "name", "", i, item, MAXBUF, false);
1131                 while (str.GetToken(classname))
1132                 {
1133                         std::string lost;
1134                         bool foundclass = false;
1135                         for (int j = 0; j < ConfValueEnum("class"); ++j)
1136                         {
1137                                 ConfValue("class", "name", "", j, classn, MAXBUF, false);
1138                                 if (!strcmp(classn, classname.c_str()))
1139                                 {
1140                                         foundclass = true;
1141                                         break;
1142                                 }
1143                         }
1144                         if (!foundclass)
1145                         {
1146                                 char msg[MAXBUF];
1147                                 snprintf(msg, MAXBUF, " Warning: Oper type '%s' has a missing class named '%s', this does nothing!\n",
1148                                         item, classname.c_str());
1149                                 errstr << msg;
1150                         }
1151                 }
1152         }
1153
1154 }
1155
1156 void ServerConfig::Apply(ServerConfig* old, const std::string &useruid)
1157 {
1158         int rem = 0, add = 0;
1159         bool errors = false;
1160         // write once here, to try it out and make sure its ok
1161         ServerInstance->WritePID(this->PID);
1162
1163         FailedPortList pl;
1164         ServerInstance->BindPorts(pl);
1165
1166         /*
1167          * These values can only be set on boot. Keep their old values. Do it before we send messages so we actually have a servername.
1168          */
1169         if (old)
1170         {
1171                 memcpy(this->ServerName, old->ServerName, sizeof(this->ServerName));
1172                 memcpy(this->sid, old->sid, sizeof(this->sid));
1173         }
1174
1175         if (pl.size())
1176         {
1177                 errstr << "Not all your client ports could be bound.\nThe following port(s) failed to bind:\n";
1178
1179                 int j = 1;
1180                 for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
1181                 {
1182                         char buf[MAXBUF];
1183                         snprintf(buf, MAXBUF, "%d.   Address: %s   Reason: %s\n", j, i->first.empty() ? "<all>" : i->first.c_str(), i->second.c_str());
1184                         errstr << buf;
1185                 }
1186         }
1187
1188         User* user = useruid.empty() ? NULL : ServerInstance->FindNick(useruid);
1189
1190         errors = !errstr.str().empty();
1191         if (errors)
1192                 ServerInstance->Logs->Log("CONFIG",DEFAULT, "There were errors in your configuration file:");
1193
1194         while (errstr.good())
1195         {
1196                 std::string line;
1197                 getline(errstr, line, '\n');
1198                 if (!line.empty())
1199                 {
1200                         if (user)
1201                                 user->WriteServ("NOTICE %s :*** %s", user->nick.c_str(), line.c_str());
1202                         else
1203                                 ServerInstance->SNO->WriteGlobalSno('a', line);
1204                 }
1205
1206                 if (!old)
1207                 {
1208                         // Starting up, so print it out so it's seen. XXX this is a bit of a hack.
1209                         printf("%s\n", line.c_str());
1210                 }
1211         }
1212
1213         errstr.clear();
1214         errstr.str(std::string());
1215
1216         /* No old configuration -> initial boot, nothing more to do here */
1217         if (!old)
1218         {
1219                 if (errors)
1220                 {
1221                         ServerInstance->Exit(EXIT_STATUS_CONFIG);
1222                 }
1223
1224                 return;
1225         }
1226
1227         // If there were errors processing configuration, don't touch modules.
1228         if (errors)
1229                 return;
1230
1231
1232         if (!removed_modules.empty())
1233         {
1234                 for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
1235                 {
1236                         if (ServerInstance->Modules->Unload(removing->c_str()))
1237                         {
1238                                 ServerInstance->SNO->WriteToSnoMask('a', "*** REHASH UNLOADED MODULE: %s",removing->c_str());
1239
1240                                 if (user)
1241                                         user->WriteNumeric(RPL_UNLOADEDMODULE, "%s %s :Module %s successfully unloaded.",user->nick.c_str(), removing->c_str(), removing->c_str());
1242                                 else
1243                                         ServerInstance->SNO->WriteToSnoMask('a', "Module %s successfully unloaded.", removing->c_str());
1244
1245                                 rem++;
1246                         }
1247                         else
1248                         {
1249                                 if (user)
1250                                         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());
1251                                 else
1252                                          ServerInstance->SNO->WriteToSnoMask('a', "Failed to unload module %s: %s", removing->c_str(), ServerInstance->Modules->LastError().c_str());
1253                         }
1254                 }
1255         }
1256
1257         if (!added_modules.empty())
1258         {
1259                 for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
1260                 {
1261                         if (ServerInstance->Modules->Load(adding->c_str()))
1262                         {
1263                                 ServerInstance->SNO->WriteToSnoMask('a', "*** REHASH LOADED MODULE: %s",adding->c_str());
1264                                 if (user)
1265                                         user->WriteNumeric(RPL_LOADEDMODULE, "%s %s :Module %s successfully loaded.",user->nick.c_str(), adding->c_str(), adding->c_str());
1266                                 else
1267                                         ServerInstance->SNO->WriteToSnoMask('a', "Module %s successfully loaded.", adding->c_str());
1268
1269                                 add++;
1270                         }
1271                         else
1272                         {
1273                                 if (user)
1274                                         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());
1275                                 else
1276                                         ServerInstance->SNO->WriteToSnoMask('a', "Failed to load module %s: %s", adding->c_str(), ServerInstance->Modules->LastError().c_str());
1277                         }
1278                 }
1279         }
1280
1281         if (user)
1282                 user->WriteServ("NOTICE %s :*** Successfully rehashed server.", user->nick.c_str());
1283         else
1284                 ServerInstance->SNO->WriteToSnoMask('a', "*** Successfully rehashed server.");
1285 }
1286
1287 bool ServerConfig::LoadConf(FILE* &conf, const char* filename)
1288 {
1289         std::string line;
1290         char ch;
1291         long linenumber = 1;
1292         long last_successful_parse = 1;
1293         bool in_tag;
1294         bool in_quote;
1295         bool in_comment;
1296         int character_count = 0;
1297
1298         in_tag = false;
1299         in_quote = false;
1300         in_comment = false;
1301
1302         ServerInstance->Logs->Log("CONFIG", DEBUG, "Reading %s", filename);
1303
1304         /* Check if the file open failed first */
1305         if (!conf)
1306         {
1307                 errstr << "LoadConf: Couldn't open config file: " << filename << std::endl;
1308                 return false;
1309         }
1310
1311         for (unsigned int t = 0; t < include_stack.size(); t++)
1312         {
1313                 if (std::string(filename) == include_stack[t])
1314                 {
1315                         errstr << "File " << filename << " is included recursively (looped inclusion)." << std::endl;
1316                         return false;
1317                 }
1318         }
1319
1320         /* It's not already included, add it to the list of files we've loaded */
1321         include_stack.push_back(filename);
1322
1323         /* Start reading characters... */
1324         while ((ch = fgetc(conf)) != EOF)
1325         {
1326                 /*
1327                  * Fix for moronic windows issue spotted by Adremelech.
1328                  * Some windows editors save text files as utf-16, which is
1329                  * a total pain in the ass to parse. Users should save in the
1330                  * right config format! If we ever see a file where the first
1331                  * byte is 0xFF or 0xFE, or the second is 0xFF or 0xFE, then
1332                  * this is most likely a utf-16 file. Bail out and insult user.
1333                  */
1334                 if ((character_count++ < 2) && (ch == '\xFF' || ch == '\xFE'))
1335                 {
1336                         errstr << "File " << filename << " cannot be read, as it is encoded in braindead UTF-16. Save your file as plain ASCII!" << std::endl;
1337                         return false;
1338                 }
1339
1340                 /*
1341                  * Here we try and get individual tags on separate lines,
1342                  * this would be so easy if we just made people format
1343                  * their config files like that, but they don't so...
1344                  * We check for a '<' and then know the line is over when
1345                  * we get a '>' not inside quotes. If we find two '<' and
1346                  * no '>' then die with an error.
1347                  */
1348
1349                 if ((ch == '#') && !in_quote)
1350                         in_comment = true;
1351
1352                 switch (ch)
1353                 {
1354                         case '\n':
1355                                 if (in_quote)
1356                                         line += '\n';
1357                                 linenumber++;
1358                         case '\r':
1359                                 if (!in_quote)
1360                                         in_comment = false;
1361                         case '\0':
1362                                 continue;
1363                         case '\t':
1364                                 ch = ' ';
1365                 }
1366
1367                 if(in_comment)
1368                         continue;
1369
1370                 /* XXX: Added by Brain, May 1st 2006 - Escaping of characters.
1371                  * Note that this WILL NOT usually allow insertion of newlines,
1372                  * because a newline is two characters long. Use it primarily to
1373                  * insert the " symbol.
1374                  *
1375                  * Note that this also involves a further check when parsing the line,
1376                  * which can be found below.
1377                  */
1378                 if ((ch == '\\') && (in_quote) && (in_tag))
1379                 {
1380                         line += ch;
1381                         char real_character;
1382                         if (!feof(conf))
1383                         {
1384                                 real_character = fgetc(conf);
1385                                 if (real_character == 'n')
1386                                         real_character = '\n';
1387                                 line += real_character;
1388                                 continue;
1389                         }
1390                         else
1391                         {
1392                                 errstr << "End of file after a \\, what did you want to escape?: " << filename << ":" << linenumber << std::endl;
1393                                 return false;
1394                         }
1395                 }
1396
1397                 if (ch != '\r')
1398                         line += ch;
1399
1400                 if ((ch != '<') && (!in_tag) && (!in_comment) && (ch > ' ') && (ch != 9))
1401                 {
1402                         errstr << "You have stray characters beyond the tag which starts at " << filename << ":" << last_successful_parse << std::endl;
1403                         return false;
1404                 }
1405
1406                 if (ch == '<')
1407                 {
1408                         if (in_tag)
1409                         {
1410                                 if (!in_quote)
1411                                 {
1412                                         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;
1413                                         return false;
1414                                 }
1415                         }
1416                         else
1417                         {
1418                                 if (in_quote)
1419                                 {
1420                                         errstr << "Parser error: Inside a quote but not within the last valid tag, which was opened at: " << filename << ":" << last_successful_parse << std::endl;
1421                                         return false;
1422                                 }
1423                                 else
1424                                 {
1425                                         // errstr << "Opening new config tag on line " << linenumber << std::endl;
1426                                         in_tag = true;
1427                                 }
1428                         }
1429                 }
1430                 else if (ch == '"')
1431                 {
1432                         if (in_tag)
1433                         {
1434                                 if (in_quote)
1435                                 {
1436                                         // errstr << "Closing quote in config tag on line " << linenumber << std::endl;
1437                                         in_quote = false;
1438                                 }
1439                                 else
1440                                 {
1441                                         // errstr << "Opening quote in config tag on line " << linenumber << std::endl;
1442                                         in_quote = true;
1443                                 }
1444                         }
1445                         else
1446                         {
1447                                 if (in_quote)
1448                                 {
1449                                         errstr << "The tag immediately after the one at " << filename << ":" << last_successful_parse << " has a missing closing \" symbol. Please check this." << std::endl;
1450                                 }
1451                                 else
1452                                 {
1453                                         errstr << "You have opened a quote (\") beyond the tag at " << filename << ":" << last_successful_parse << " without opening a new tag. Please check this." << std::endl;
1454                                 }
1455                         }
1456                 }
1457                 else if (ch == '>')
1458                 {
1459                         if (!in_quote)
1460                         {
1461                                 if (in_tag)
1462                                 {
1463                                         // errstr << "Closing config tag on line " << linenumber << std::endl;
1464                                         in_tag = false;
1465
1466                                         /*
1467                                          * If this finds an <include> then ParseLine can simply call
1468                                          * LoadConf() and load the included config into the same ConfigDataHash
1469                                          */
1470                                         long bl = linenumber;
1471                                         if (!this->ParseLine(filename, line, linenumber))
1472                                                 return false;
1473                                         last_successful_parse = linenumber;
1474
1475                                         linenumber = bl;
1476
1477                                         line.clear();
1478                                 }
1479                                 else
1480                                 {
1481                                         errstr << "You forgot to close the tag which comes immediately after the one at " << filename << ":" << last_successful_parse << std::endl;
1482                                         return false;
1483                                 }
1484                         }
1485                 }
1486         }
1487
1488         /* 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 */
1489         if (in_comment || in_quote)
1490         {
1491                 errstr << "Reached end of file whilst still inside a quoted section or tag. This is most likely an error or there \
1492                         is a newline missing from the end of the file: " << filename << ":" << linenumber << std::endl;
1493         }
1494
1495         return true;
1496 }
1497
1498
1499 bool ServerConfig::LoadConf(FILE* &conf, const std::string &filename)
1500 {
1501         return this->LoadConf(conf, filename.c_str());
1502 }
1503
1504 bool ServerConfig::ParseLine(const std::string &filename, std::string &line, long &linenumber)
1505 {
1506         std::string tagname;
1507         std::string current_key;
1508         std::string current_value;
1509         KeyValList results;
1510         char last_char = 0;
1511         bool got_name;
1512         bool got_key;
1513         bool in_quote;
1514
1515         got_name = got_key = in_quote = false;
1516
1517         for(std::string::iterator c = line.begin(); c != line.end(); c++)
1518         {
1519                 if (!got_name)
1520                 {
1521                         /* We don't know the tag name yet. */
1522
1523                         if (*c != ' ')
1524                         {
1525                                 if (*c != '<')
1526                                 {
1527                                         if ((*c >= 'a' && *c <= 'z') || (*c >= 'A' && *c <='Z') || (*c >= '0' && *c <= '9') || *c == '_')
1528                                                 tagname += *c;
1529                                         else
1530                                         {
1531                                                 errstr << "Invalid character in value name of tag: '" << *c << "' in value '" << tagname << "' in filename: " << filename << ":" << linenumber << std::endl;
1532                                                 return false;
1533                                         }
1534                                 }
1535                         }
1536                         else
1537                         {
1538                                 /* We got to a space, we should have the tagname now. */
1539                                 if(tagname.length())
1540                                 {
1541                                         got_name = true;
1542                                 }
1543                         }
1544                 }
1545                 else
1546                 {
1547                         /* We have the tag name */
1548                         if (!got_key)
1549                         {
1550                                 /* We're still reading the key name */
1551                                 if ((*c != '=') && (*c != '>'))
1552                                 {
1553                                         if (*c != ' ')
1554                                         {
1555                                                 if ((*c >= 'a' && *c <= 'z') || (*c >= 'A' && *c <='Z') || (*c >= '0' && *c <= '9') || *c == '_')
1556                                                         current_key += *c;
1557                                                 else
1558                                                 {
1559                                                         errstr << "Invalid character in key: '" << *c << "' in key '" << current_key << "' in filename: " << filename << ":" << linenumber << std::endl;
1560                                                         return false;
1561                                                 }
1562                                         }
1563                                 }
1564                                 else
1565                                 {
1566                                         /* We got an '=', end of the key name. */
1567                                         got_key = true;
1568                                 }
1569                         }
1570                         else
1571                         {
1572                                 /* We have the key name, now we're looking for quotes and the value */
1573
1574                                 /* Correctly handle escaped characters here.
1575                                  * See the XXX'ed section above.
1576                                  */
1577                                 if ((*c == '\\') && (in_quote))
1578                                 {
1579                                         c++;
1580                                         if (*c == 'n')
1581                                                 current_value += '\n';
1582                                         else
1583                                                 current_value += *c;
1584                                         continue;
1585                                 }
1586                                 else if ((*c == '\\') && (!in_quote))
1587                                 {
1588                                         errstr << "You can't have an escape sequence outside of a quoted section: " << filename << ":" << linenumber << std::endl;
1589                                         return false;
1590                                 }
1591                                 else if ((*c == '\n') && (in_quote))
1592                                 {
1593                                         /* Got a 'real' \n, treat it as part of the value */
1594                                         current_value += '\n';
1595                                         continue;
1596                                 }
1597                                 else if ((*c == '\r') && (in_quote))
1598                                 {
1599                                         /* Got a \r, drop it */
1600                                         continue;
1601                                 }
1602
1603                                 if (*c == '"')
1604                                 {
1605                                         if (!in_quote)
1606                                         {
1607                                                 /* We're not already in a quote. */
1608                                                 in_quote = true;
1609                                         }
1610                                         else
1611                                         {
1612                                                 /* Leaving the quotes, we have the current value */
1613                                                 results.push_back(KeyVal(current_key, current_value));
1614
1615                                                 // std::cout << "<" << tagname << ":" << current_key << "> " << current_value << std::endl;
1616
1617                                                 in_quote = false;
1618                                                 got_key = false;
1619
1620                                                 if ((tagname == "include") && (current_key == "file"))
1621                                                 {
1622                                                         if (!this->DoInclude(current_value))
1623                                                                 return false;
1624                                                 }
1625                                                 else if ((tagname == "include") && (current_key == "executable"))
1626                                                 {
1627                                                         /* Pipe an executable and use its stdout as config data */
1628                                                         if (!this->DoPipe(current_value))
1629                                                                 return false;
1630                                                 }
1631
1632                                                 current_key.clear();
1633                                                 current_value.clear();
1634                                         }
1635                                 }
1636                                 else
1637                                 {
1638                                         if (in_quote)
1639                                         {
1640                                                 last_char = *c;
1641                                                 current_value += *c;
1642                                         }
1643                                 }
1644                         }
1645                 }
1646         }
1647
1648         /* Finished parsing the tag, add it to the config hash */
1649         config_data.insert(std::pair<std::string, KeyValList > (tagname, results));
1650
1651         return true;
1652 }
1653
1654 bool ServerConfig::DoPipe(const std::string &file)
1655 {
1656         FILE* conf = popen(file.c_str(), "r");
1657         bool ret = false;
1658
1659         if (conf)
1660         {
1661                 ret = LoadConf(conf, file.c_str());
1662                 pclose(conf);
1663         }
1664         else
1665                 errstr << "Couldn't execute: " << file << std::endl;
1666
1667         return ret;
1668 }
1669
1670 bool ServerConfig::StartsWithWindowsDriveLetter(const std::string &path)
1671 {
1672         return (path.length() > 2 && isalpha(path[0]) && path[1] == ':');
1673 }
1674
1675 bool ServerConfig::DoInclude(const std::string &file)
1676 {
1677         std::string confpath;
1678         std::string newfile;
1679         std::string::size_type pos;
1680
1681         confpath = ServerInstance->ConfigFileName;
1682         newfile = file;
1683
1684         std::replace(newfile.begin(),newfile.end(),'\\','/');
1685         std::replace(confpath.begin(),confpath.end(),'\\','/');
1686
1687         if ((newfile[0] != '/') && (!StartsWithWindowsDriveLetter(newfile)))
1688         {
1689                 if((pos = confpath.rfind("/")) != std::string::npos)
1690                 {
1691                         /* Leaves us with just the path */
1692                         newfile = confpath.substr(0, pos) + std::string("/") + newfile;
1693                 }
1694                 else
1695                 {
1696                         errstr << "Couldn't get config path from: " << ServerInstance->ConfigFileName << std::endl;
1697                         return false;
1698                 }
1699         }
1700
1701         FILE* conf = fopen(newfile.c_str(), "r");
1702         bool ret = false;
1703
1704         if (conf)
1705         {
1706                 ret = LoadConf(conf, newfile);
1707                 fclose(conf);
1708         }
1709         else
1710                 errstr << "Couldn't open config file: " << file << std::endl;
1711
1712         return ret;
1713 }
1714
1715 bool ServerConfig::ConfValue(const char* tag, const char* var, int index, char* result, int length, bool allow_linefeeds)
1716 {
1717         return ConfValue(tag, var, "", index, result, length, allow_linefeeds);
1718 }
1719
1720 bool ServerConfig::ConfValue(const char* tag, const char* var, const char* default_value, int index, char* result, int length, bool allow_linefeeds)
1721 {
1722         std::string value;
1723         bool r = ConfValue(std::string(tag), std::string(var), std::string(default_value), index, value, allow_linefeeds);
1724         strlcpy(result, value.c_str(), length);
1725         return r;
1726 }
1727
1728 bool ServerConfig::ConfValue(const std::string &tag, const std::string &var, int index, std::string &result, bool allow_linefeeds)
1729 {
1730         return ConfValue(tag, var, "", index, result, allow_linefeeds);
1731 }
1732
1733 bool ServerConfig::ConfValue(const std::string &tag, const std::string &var, const std::string &default_value, int index, std::string &result, bool allow_linefeeds)
1734 {
1735         ConfigDataHash::size_type pos = index;
1736         if (pos < config_data.count(tag))
1737         {
1738                 ConfigDataHash::iterator iter = config_data.find(tag);
1739
1740                 for(int i = 0; i < index; i++)
1741                         iter++;
1742
1743                 for(KeyValList::iterator j = iter->second.begin(); j != iter->second.end(); j++)
1744                 {
1745                         if(j->first == var)
1746                         {
1747                                 if ((!allow_linefeeds) && (j->second.find('\n') != std::string::npos))
1748                                 {
1749                                         ServerInstance->Logs->Log("CONFIG",DEFAULT, "Value of <" + tag + ":" + var+ "> contains a linefeed, and linefeeds in this value are not permitted -- stripped to spaces.");
1750                                         for (std::string::iterator n = j->second.begin(); n != j->second.end(); n++)
1751                                                 if (*n == '\n')
1752                                                         *n = ' ';
1753                                 }
1754                                 else
1755                                 {
1756                                         result = j->second;
1757                                         return true;
1758                                 }
1759                         }
1760                 }
1761                 if (!default_value.empty())
1762                 {
1763                         result = default_value;
1764                         return true;
1765                 }
1766         }
1767         else if (pos == 0)
1768         {
1769                 if (!default_value.empty())
1770                 {
1771                         result = default_value;
1772                         return true;
1773                 }
1774         }
1775         return false;
1776 }
1777
1778 bool ServerConfig::ConfValueInteger(const char* tag, const char* var, int index, int &result)
1779 {
1780         return ConfValueInteger(std::string(tag), std::string(var), "", index, result);
1781 }
1782
1783 bool ServerConfig::ConfValueInteger(const char* tag, const char* var, const char* default_value, int index, int &result)
1784 {
1785         return ConfValueInteger(std::string(tag), std::string(var), std::string(default_value), index, result);
1786 }
1787
1788 bool ServerConfig::ConfValueInteger(const std::string &tag, const std::string &var, int index, int &result)
1789 {
1790         return ConfValueInteger(tag, var, "", index, result);
1791 }
1792
1793 bool ServerConfig::ConfValueInteger(const std::string &tag, const std::string &var, const std::string &default_value, int index, int &result)
1794 {
1795         std::string value;
1796         std::istringstream stream;
1797         bool r = ConfValue(tag, var, default_value, index, value);
1798         stream.str(value);
1799         if(!(stream >> result))
1800                 return false;
1801         else
1802         {
1803                 if (!value.empty())
1804                 {
1805                         if (value.substr(0,2) == "0x")
1806                         {
1807                                 char* endptr;
1808
1809                                 value.erase(0,2);
1810                                 result = strtol(value.c_str(), &endptr, 16);
1811
1812                                 /* No digits found */
1813                                 if (endptr == value.c_str())
1814                                         return false;
1815                         }
1816                         else
1817                         {
1818                                 char denominator = *(value.end() - 1);
1819                                 switch (toupper(denominator))
1820                                 {
1821                                         case 'K':
1822                                                 /* Kilobytes -> bytes */
1823                                                 result = result * 1024;
1824                                         break;
1825                                         case 'M':
1826                                                 /* Megabytes -> bytes */
1827                                                 result = result * 1024 * 1024;
1828                                         break;
1829                                         case 'G':
1830                                                 /* Gigabytes -> bytes */
1831                                                 result = result * 1024 * 1024 * 1024;
1832                                         break;
1833                                 }
1834                         }
1835                 }
1836         }
1837         return r;
1838 }
1839
1840
1841 bool ServerConfig::ConfValueBool(const char* tag, const char* var, int index)
1842 {
1843         return ConfValueBool(std::string(tag), std::string(var), "", index);
1844 }
1845
1846 bool ServerConfig::ConfValueBool(const char* tag, const char* var, const char* default_value, int index)
1847 {
1848         return ConfValueBool(std::string(tag), std::string(var), std::string(default_value), index);
1849 }
1850
1851 bool ServerConfig::ConfValueBool(const std::string &tag, const std::string &var, int index)
1852 {
1853         return ConfValueBool(tag, var, "", index);
1854 }
1855
1856 bool ServerConfig::ConfValueBool(const std::string &tag, const std::string &var, const std::string &default_value, int index)
1857 {
1858         std::string result;
1859         if(!ConfValue(tag, var, default_value, index, result))
1860                 return false;
1861
1862         return ((result == "yes") || (result == "true") || (result == "1"));
1863 }
1864
1865 int ServerConfig::ConfValueEnum(const char* tag)
1866 {
1867         return config_data.count(tag);
1868 }
1869
1870 int ServerConfig::ConfValueEnum(const std::string &tag)
1871 {
1872         return config_data.count(tag);
1873 }
1874
1875 int ServerConfig::ConfVarEnum(const char* tag, int index)
1876 {
1877         return ConfVarEnum(std::string(tag), index);
1878 }
1879
1880 int ServerConfig::ConfVarEnum(const std::string &tag, int index)
1881 {
1882         ConfigDataHash::size_type pos = index;
1883
1884         if (pos < config_data.count(tag))
1885         {
1886                 ConfigDataHash::const_iterator iter = config_data.find(tag);
1887
1888                 for(int i = 0; i < index; i++)
1889                         iter++;
1890
1891                 return iter->second.size();
1892         }
1893
1894         return 0;
1895 }
1896
1897 /** Read the contents of a file located by `fname' into a file_cache pointed at by `F'.
1898  */
1899 bool ServerConfig::ReadFile(file_cache &F, const char* fname)
1900 {
1901         if (!fname || !*fname)
1902                 return false;
1903
1904         FILE* file = NULL;
1905         char linebuf[MAXBUF];
1906
1907         F.clear();
1908
1909         if ((*fname != '/') && (*fname != '\\') && (!StartsWithWindowsDriveLetter(fname)))
1910         {
1911                 std::string::size_type pos;
1912                 std::string confpath = ServerInstance->ConfigFileName;
1913                 std::string newfile = fname;
1914
1915                 if (((pos = confpath.rfind("/"))) != std::string::npos)
1916                         newfile = confpath.substr(0, pos) + std::string("/") + fname;
1917                 else if (((pos = confpath.rfind("\\"))) != std::string::npos)
1918                         newfile = confpath.substr(0, pos) + std::string("\\") + fname;
1919
1920                 ServerInstance->Logs->Log("config", DEBUG, "Filename: %s", newfile.c_str());
1921
1922                 if (!FileExists(newfile.c_str()))
1923                         return false;
1924                 file =  fopen(newfile.c_str(), "r");
1925         }
1926         else
1927         {
1928                 if (!FileExists(fname))
1929                         return false;
1930                 file =  fopen(fname, "r");
1931         }
1932
1933         if (file)
1934         {
1935                 while (!feof(file))
1936                 {
1937                         if (fgets(linebuf, sizeof(linebuf), file))
1938                                 linebuf[strlen(linebuf)-1] = 0;
1939                         else
1940                                 *linebuf = 0;
1941
1942                         F.push_back(*linebuf ? linebuf : " ");
1943                 }
1944
1945                 fclose(file);
1946         }
1947         else
1948                 return false;
1949
1950         return true;
1951 }
1952
1953 bool ServerConfig::FileExists(const char* file)
1954 {
1955         struct stat sb;
1956         if (stat(file, &sb) == -1)
1957                 return false;
1958
1959         if ((sb.st_mode & S_IFDIR) > 0)
1960                 return false;
1961
1962         FILE *input;
1963         if ((input = fopen (file, "r")) == NULL)
1964                 return false;
1965         else
1966         {
1967                 fclose(input);
1968                 return true;
1969         }
1970 }
1971
1972 char* ServerConfig::CleanFilename(char* name)
1973 {
1974         char* p = name + strlen(name);
1975         while ((p != name) && (*p != '/') && (*p != '\\')) p--;
1976         return (p != name ? ++p : p);
1977 }
1978
1979
1980 std::string ServerConfig::GetFullProgDir()
1981 {
1982         char buffer[PATH_MAX];
1983 #ifdef WINDOWS
1984         /* Windows has specific api calls to get the exe path that never fail.
1985          * For once, windows has something of use, compared to the POSIX code
1986          * for this, this is positively neato.
1987          */
1988         if (GetModuleFileName(NULL, buffer, MAX_PATH))
1989         {
1990                 std::string fullpath = buffer;
1991                 std::string::size_type n = fullpath.rfind("\\inspircd.exe");
1992                 return std::string(fullpath, 0, n);
1993         }
1994 #else
1995         // Get the current working directory
1996         if (getcwd(buffer, PATH_MAX))
1997         {
1998                 std::string remainder = this->argv[0];
1999
2000                 /* Does argv[0] start with /? its a full path, use it */
2001                 if (remainder[0] == '/')
2002                 {
2003                         std::string::size_type n = remainder.rfind("/inspircd");
2004                         return std::string(remainder, 0, n);
2005                 }
2006
2007                 std::string fullpath = std::string(buffer) + "/" + remainder;
2008                 std::string::size_type n = fullpath.rfind("/inspircd");
2009                 return std::string(fullpath, 0, n);
2010         }
2011 #endif
2012         return "/";
2013 }
2014
2015 InspIRCd* ServerConfig::GetInstance()
2016 {
2017         return ServerInstance;
2018 }
2019
2020 std::string ServerConfig::GetSID()
2021 {
2022         return sid;
2023 }
2024
2025 ValueItem::ValueItem(int value)
2026 {
2027         std::stringstream n;
2028         n << value;
2029         v = n.str();
2030 }
2031
2032 ValueItem::ValueItem(bool value)
2033 {
2034         std::stringstream n;
2035         n << value;
2036         v = n.str();
2037 }
2038
2039 ValueItem::ValueItem(const char* value)
2040 {
2041         v = value;
2042 }
2043
2044 void ValueItem::Set(const char* value)
2045 {
2046         v = value;
2047 }
2048
2049 void ValueItem::Set(int value)
2050 {
2051         std::stringstream n;
2052         n << value;
2053         v = n.str();
2054 }
2055
2056 int ValueItem::GetInteger()
2057 {
2058         if (v.empty())
2059                 return 0;
2060         return atoi(v.c_str());
2061 }
2062
2063 char* ValueItem::GetString()
2064 {
2065         return (char*)v.c_str();
2066 }
2067
2068 bool ValueItem::GetBool()
2069 {
2070         return (GetInteger() || v == "yes" || v == "true");
2071 }
2072
2073
2074
2075
2076 /*
2077  * XXX should this be in a class? -- w00t
2078  */
2079 bool InitTypes(ServerConfig* conf, const char*)
2080 {
2081         conf->opertypes.clear();
2082         return true;
2083 }
2084
2085 /*
2086  * XXX should this be in a class? -- w00t
2087  */
2088 bool InitClasses(ServerConfig* conf, const char*)
2089 {
2090         if (conf->operclass.size())
2091         {
2092                 for (operclass_t::iterator n = conf->operclass.begin(); n != conf->operclass.end(); n++)
2093                 {
2094                         if (n->second.commandlist)
2095                                 delete[] n->second.commandlist;
2096                         if (n->second.cmodelist)
2097                                 delete[] n->second.cmodelist;
2098                         if (n->second.umodelist)
2099                                 delete[] n->second.umodelist;
2100                         if (n->second.privs)
2101                                 delete[] n->second.privs;
2102                 }
2103         }
2104
2105         conf->operclass.clear();
2106         return true;
2107 }
2108
2109 /*
2110  * XXX should this be in a class? -- w00t
2111  */
2112 bool DoType(ServerConfig* conf, const char*, char**, ValueList &values, int*)
2113 {
2114         const char* TypeName = values[0].GetString();
2115         const char* Classes = values[1].GetString();
2116
2117         conf->opertypes[TypeName] = std::string(Classes);
2118         return true;
2119 }
2120
2121 /*
2122  * XXX should this be in a class? -- w00t
2123  */
2124 bool DoClass(ServerConfig* conf, const char* tag, char**, ValueList &values, int*)
2125 {
2126         const char* ClassName = values[0].GetString();
2127         const char* CommandList = values[1].GetString();
2128         const char* UModeList = values[2].GetString();
2129         const char* CModeList = values[3].GetString();
2130         const char *PrivsList = values[4].GetString();
2131
2132         for (const char* c = UModeList; *c; ++c)
2133         {
2134                 if ((*c < 'A' || *c > 'z') && *c != '*')
2135                 {
2136                         throw CoreException("Character " + std::string(1, *c) + " is not a valid mode in <class:usermodes>");
2137                 }
2138         }
2139         for (const char* c = CModeList; *c; ++c)
2140         {
2141                 if ((*c < 'A' || *c > 'z') && *c != '*')
2142                 {
2143                         throw CoreException("Character " + std::string(1, *c) + " is not a valid mode in <class:chanmodes>");
2144                 }
2145         }
2146
2147         conf->operclass[ClassName].commandlist = strnewdup(CommandList);
2148         conf->operclass[ClassName].umodelist = strnewdup(UModeList);
2149         conf->operclass[ClassName].cmodelist = strnewdup(CModeList);
2150         conf->operclass[ClassName].privs = strnewdup(PrivsList);
2151         return true;
2152 }
2153
2154 /*
2155  * XXX should this be in a class? -- w00t
2156  */
2157 bool DoneClassesAndTypes(ServerConfig*, const char*)
2158 {
2159         return true;
2160 }
2161
2162
2163
2164 bool InitXLine(ServerConfig* conf, const char* tag)
2165 {
2166         return true;
2167 }
2168
2169 bool DoZLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
2170 {
2171         const char* reason = values[0].GetString();
2172         const char* ipmask = values[1].GetString();
2173
2174         ZLine* zl = new ZLine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, ipmask);
2175         if (!conf->GetInstance()->XLines->AddLine(zl, NULL))
2176                 delete zl;
2177
2178         return true;
2179 }
2180
2181 bool DoQLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
2182 {
2183         const char* reason = values[0].GetString();
2184         const char* nick = values[1].GetString();
2185
2186         QLine* ql = new QLine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, nick);
2187         if (!conf->GetInstance()->XLines->AddLine(ql, NULL))
2188                 delete ql;
2189
2190         return true;
2191 }
2192
2193 bool DoKLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
2194 {
2195         const char* reason = values[0].GetString();
2196         const char* host = values[1].GetString();
2197
2198         XLineManager* xlm = conf->GetInstance()->XLines;
2199
2200         IdentHostPair ih = xlm->IdentSplit(host);
2201
2202         KLine* kl = new KLine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, ih.first.c_str(), ih.second.c_str());
2203         if (!xlm->AddLine(kl, NULL))
2204                 delete kl;
2205         return true;
2206 }
2207
2208 bool DoELine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
2209 {
2210         const char* reason = values[0].GetString();
2211         const char* host = values[1].GetString();
2212
2213         XLineManager* xlm = conf->GetInstance()->XLines;
2214
2215         IdentHostPair ih = xlm->IdentSplit(host);
2216
2217         ELine* el = new ELine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, ih.first.c_str(), ih.second.c_str());
2218         if (!xlm->AddLine(el, NULL))
2219                 delete el;
2220         return true;
2221 }
2222
2223 // this should probably be moved to configreader, but atm it relies on CheckELines above.
2224 bool DoneELine(ServerConfig* conf, const char* tag)
2225 {
2226         for (std::vector<User*>::const_iterator u2 = conf->GetInstance()->Users->local_users.begin(); u2 != conf->GetInstance()->Users->local_users.end(); u2++)
2227         {
2228                 User* u = (User*)(*u2);
2229                 u->exempt = false;
2230         }
2231
2232         conf->GetInstance()->XLines->CheckELines();
2233         return true;
2234 }
2235
2236 void ConfigReaderThread::Run()
2237 {
2238         Config = new ServerConfig(ServerInstance);
2239         Config->Read();
2240         done = true;
2241 }
2242
2243 void ConfigReaderThread::Finish()
2244 {
2245         ServerConfig* old = ServerInstance->Config;
2246         ServerInstance->Config = this->Config;
2247         Config->Apply(old, TheUserUID);
2248         delete old;
2249 }