src/configreader.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *          the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 /* $Core: libIRCDconfigreader */
  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: docs/inspircd.conf.example $(CONPATH) */
  23
  24 #include "inspircd.h"
  25 #include <fstream>
  26 #include "xline.h"
  27 #include "exitcodes.h"
  28 #include "commands/cmd_whowas.h"
  29
  30 std::vector<std::string> old_module_names, new_module_names, added_modules, removed_modules;
  31
  32 /* Needs forward declaration */
  33 bool ValidateDnsServer(ServerConfig* conf, const char* tag, const char* value, ValueItem &data);
  34 bool DoneELine(ServerConfig* conf, const char* tag);
  35
  36 ServerConfig::ServerConfig(InspIRCd* Instance) : ServerInstance(Instance)
  37 {
  38         this->ClearStack();
  39         *ServerName = *Network = *ServerDesc = *AdminName = '\0';
  40         *HideWhoisServer = *AdminEmail = *AdminNick = *diepass = *restartpass = *FixedQuit = *HideKillsServer = '\0';
  41         *DefaultModes = *CustomVersion = *motd = *rules = *PrefixQuit = *DieValue = *DNSServer = '\0';
  42         *UserStats = *ModPath = *MyExecutable = *DisabledCommands = *PID = *SuffixQuit = '\0';
  43         WhoWasGroupSize = WhoWasMaxGroups = WhoWasMaxKeep = 0;
  44         log_file = NULL;
  45         NoUserDns = forcedebug = OperSpyWhois = nofork = HideBans = HideSplits = UndernetMsgPrefix = false;
  46         CycleHosts = writelog = AllowHalfop = true;
  47         dns_timeout = DieDelay = 5;
  48         MaxTargets = 20;
  49         NetBufferSize = 10240;
  50         SoftLimit = Instance->SE->GetMaxFds();
  51         MaxConn = SOMAXCONN;
  52         MaxWhoResults = 0;
  53         debugging = 0;
  54         MaxChans = 20;
  55         OperMaxChans = 30;
  56         maxbans.clear();
  57         DNSServerValidator = &ValidateDnsServer;
  58 }
  59
  60 void ServerConfig::ClearStack()
  61 {
  62         include_stack.clear();
  63 }
  64
  65 Module* ServerConfig::GetIOHook(BufferedSocket* is)
  66 {
  67         std::map<BufferedSocket*,Module*>::iterator x = SocketIOHookModule.find(is);
  68         return (x != SocketIOHookModule.end() ? x->second : NULL);
  69 }
  70
  71 bool ServerConfig::AddIOHook(Module* iomod, BufferedSocket* is)
  72 {
  73         if (!GetIOHook(is))
  74         {
  75                 SocketIOHookModule[is] = iomod;
  76                 is->IsIOHooked = true;
  77                 return true;
  78         }
  79         else
  80         {
  81                 throw ModuleException("BufferedSocket derived class already hooked by another module");
  82                 return false;
  83         }
  84 }
  85
  86 bool ServerConfig::DelIOHook(BufferedSocket* is)
  87 {
  88         std::map<BufferedSocket*,Module*>::iterator x = SocketIOHookModule.find(is);
  89         if (x != SocketIOHookModule.end())
  90         {
  91                 SocketIOHookModule.erase(x);
  92                 return true;
  93         }
  94         return false;
  95 }
  96
  97 void ServerConfig::Update005()
  98 {
  99         std::stringstream out(data005);
 100         std::string token;
 101         std::string line5;
 102         int token_counter = 0;
 103         isupport.clear();
 104         while (out >> token)
 105         {
 106                 line5 = line5 + token + " ";
 107                 token_counter++;
 108                 if (token_counter >= 13)
 109                 {
 110                         char buf[MAXBUF];
 111                         snprintf(buf, MAXBUF, "%s:are supported by this server", line5.c_str());
 112                         isupport.push_back(buf);
 113                         line5.clear();
 114                         token_counter = 0;
 115                 }
 116         }
 117         if (!line5.empty())
 118         {
 119                 char buf[MAXBUF];
 120                 snprintf(buf, MAXBUF, "%s:are supported by this server", line5.c_str());
 121                 isupport.push_back(buf);
 122         }
 123 }
 124
 125 void ServerConfig::Send005(User* user)
 126 {
 127         for (std::vector<std::string>::iterator line = ServerInstance->Config->isupport.begin(); line != ServerInstance->Config->isupport.end(); line++)
 128                 user->WriteNumeric(005, "%s %s", user->nick, line->c_str());
 129 }
 130
 131 bool ServerConfig::CheckOnce(const char* tag, ConfigDataHash &newconf)
 132 {
 133         int count = ConfValueEnum(newconf, tag);
 134
 135         if (count > 1)
 136         {
 137                 throw CoreException("You have more than one <"+std::string(tag)+"> tag, this is not permitted.");
 138                 return false;
 139         }
 140         if (count < 1)
 141         {
 142                 throw CoreException("You have not defined a <"+std::string(tag)+"> tag, this is required.");
 143                 return false;
 144         }
 145         return true;
 146 }
 147
 148 bool NoValidation(ServerConfig*, const char*, const char*, ValueItem&)
 149 {
 150         return true;
 151 }
 152
 153 bool DoneConfItem(ServerConfig* conf, const char* tag)
 154 {
 155         return true;
 156 }
 157
 158 void ServerConfig::ValidateNoSpaces(const char* p, const std::string &tag, const std::string &val)
 159 {
 160         for (const char* ptr = p; *ptr; ++ptr)
 161         {
 162                 if (*ptr == ' ')
 163                         throw CoreException("The value of <"+tag+":"+val+"> cannot contain spaces");
 164         }
 165 }
 166
 167 /* 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,
 168  * even in strerror(errno). They just return 'yes' or 'no' to an address without such detail as to whats WRONG with the address.
 169  * Because ircd users arent as technical as they used to be (;)) we are going to give more of a useful error message.
 170  */
 171 void ServerConfig::ValidateIP(const char* p, const std::string &tag, const std::string &val, bool wild)
 172 {
 173         int num_dots = 0;
 174         int num_seps = 0;
 175         int not_numbers = false;
 176         int not_hex = false;
 177
 178         if (*p)
 179         {
 180                 if (*p == '.')
 181                         throw CoreException("The value of <"+tag+":"+val+"> is not an IP address");
 182
 183                 for (const char* ptr = p; *ptr; ++ptr)
 184                 {
 185                         if (wild && (*ptr == '*' || *ptr == '?' || *ptr == '/'))
 186                                 continue;
 187
 188                         if (*ptr != ':' && *ptr != '.')
 189                         {
 190                                 if (*ptr < '0' || *ptr > '9')
 191                                         not_numbers = true;
 192                                 if ((*ptr < '0' || *ptr > '9') && (toupper(*ptr) < 'A' || toupper(*ptr) > 'F'))
 193                                         not_hex = true;
 194                         }
 195                         switch (*ptr)
 196                         {
 197                                 case ' ':
 198                                         throw CoreException("The value of <"+tag+":"+val+"> is not an IP address");
 199                                 case '.':
 200                                         num_dots++;
 201                                 break;
 202                                 case ':':
 203                                         num_seps++;
 204                                 break;
 205                         }
 206                 }
 207
 208                 if (num_dots > 3)
 209                         throw CoreException("The value of <"+tag+":"+val+"> is an IPv4 address with too many fields!");
 210
 211                 if (num_seps > 8)
 212                         throw CoreException("The value of <"+tag+":"+val+"> is an IPv6 address with too many fields!");
 213
 214                 if (num_seps == 0 && num_dots < 3 && !wild)
 215                         throw CoreException("The value of <"+tag+":"+val+"> looks to be a malformed IPv4 address");
 216
 217                 if (num_seps == 0 && num_dots == 3 && not_numbers)
 218                         throw CoreException("The value of <"+tag+":"+val+"> contains non-numeric characters in an IPv4 address");
 219
 220                 if (num_seps != 0 && not_hex)
 221                         throw CoreException("The value of <"+tag+":"+val+"> contains non-hexdecimal characters in an IPv6 address");
 222
 223                 if (num_seps != 0 && num_dots != 3 && num_dots != 0 && !wild)
 224                         throw CoreException("The value of <"+tag+":"+val+"> is a malformed IPv6 4in6 address");
 225         }
 226 }
 227
 228 void ServerConfig::ValidateHostname(const char* p, const std::string &tag, const std::string &val)
 229 {
 230         int num_dots = 0;
 231         if (*p)
 232         {
 233                 if (*p == '.')
 234                         throw CoreException("The value of <"+tag+":"+val+"> is not a valid hostname");
 235                 for (const char* ptr = p; *ptr; ++ptr)
 236                 {
 237                         switch (*ptr)
 238                         {
 239                                 case ' ':
 240                                         throw CoreException("The value of <"+tag+":"+val+"> is not a valid hostname");
 241                                 case '.':
 242                                         num_dots++;
 243                                 break;
 244                         }
 245                 }
 246                 if (num_dots == 0)
 247                         throw CoreException("The value of <"+tag+":"+val+"> is not a valid hostname");
 248         }
 249 }
 250
 251 bool ValidateMaxTargets(ServerConfig* conf, const char*, const char*, ValueItem &data)
 252 {
 253         if ((data.GetInteger() < 0) || (data.GetInteger() > 31))
 254         {
 255                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"WARNING: <options:maxtargets> value is greater than 31 or less than 0, set to 20.");
 256                 data.Set(20);
 257         }
 258         return true;
 259 }
 260
 261 bool ValidateSoftLimit(ServerConfig* conf, const char*, const char*, ValueItem &data)
 262 {
 263         if ((data.GetInteger() < 1) || (data.GetInteger() > conf->GetInstance()->SE->GetMaxFds()))
 264         {
 265                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"WARNING: <options:softlimit> value is greater than %d or less than 0, set to %d.",conf->GetInstance()->SE->GetMaxFds(),conf->GetInstance()->SE->GetMaxFds());
 266                 data.Set(conf->GetInstance()->SE->GetMaxFds());
 267         }
 268         return true;
 269 }
 270
 271 bool ValidateMaxConn(ServerConfig* conf, const char*, const char*, ValueItem &data)
 272 {
 273         if (data.GetInteger() > SOMAXCONN)
 274                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"WARNING: <options:somaxconn> value may be higher than the system-defined SOMAXCONN value!");
 275         return true;
 276 }
 277
 278 bool InitializeDisabledCommands(const char* data, InspIRCd* ServerInstance)
 279 {
 280         std::stringstream dcmds(data);
 281         std::string thiscmd;
 282
 283         /* Enable everything first */
 284         for (Commandable::iterator x = ServerInstance->Parser->cmdlist.begin(); x != ServerInstance->Parser->cmdlist.end(); x++)
 285                 x->second->Disable(false);
 286
 287         /* Now disable all the ones which the user wants disabled */
 288         while (dcmds >> thiscmd)
 289         {
 290                 Commandable::iterator cm = ServerInstance->Parser->cmdlist.find(thiscmd);
 291                 if (cm != ServerInstance->Parser->cmdlist.end())
 292                 {
 293                         cm->second->Disable(true);
 294                 }
 295         }
 296         return true;
 297 }
 298
 299 bool ValidateDnsServer(ServerConfig* conf, const char*, const char*, ValueItem &data)
 300 {
 301         if (!*(data.GetString()))
 302         {
 303                 std::string nameserver;
 304                 // attempt to look up their nameserver from /etc/resolv.conf
 305                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"WARNING: <dns:server> not defined, attempting to find working server in /etc/resolv.conf...");
 306                 std::ifstream resolv("/etc/resolv.conf");
 307                 bool found_server = false;
 308
 309                 if (resolv.is_open())
 310                 {
 311                         while (resolv >> nameserver)
 312                         {
 313                                 if ((nameserver == "nameserver") && (!found_server))
 314                                 {
 315                                         resolv >> nameserver;
 316                                         data.Set(nameserver.c_str());
 317                                         found_server = true;
 318                                         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"<dns:server> set to '%s' as first resolver in /etc/resolv.conf.",nameserver.c_str());
 319                                 }
 320                         }
 321
 322                         if (!found_server)
 323                         {
 324                                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"/etc/resolv.conf contains no viable nameserver entries! Defaulting to nameserver '127.0.0.1'!");
 325                                 data.Set("127.0.0.1");
 326                         }
 327                 }
 328                 else
 329                 {
 330                         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"/etc/resolv.conf can't be opened! Defaulting to nameserver '127.0.0.1'!");
 331                         data.Set("127.0.0.1");
 332                 }
 333         }
 334         return true;
 335 }
 336
 337 bool ValidateServerName(ServerConfig* conf, const char*, const char*, ValueItem &data)
 338 {
 339         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"Validating server name");
 340         /* If we already have a servername, and they changed it, we should throw an exception. */
 341         if (!strchr(data.GetString(), '.'))
 342         {
 343                 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(),'.');
 344                 std::string moo = std::string(data.GetString()).append(".");
 345                 data.Set(moo.c_str());
 346         }
 347         return true;
 348 }
 349
 350 bool ValidateNetBufferSize(ServerConfig* conf, const char*, const char*, ValueItem &data)
 351 {
 352         if ((!data.GetInteger()) || (data.GetInteger() > 65535) || (data.GetInteger() < 1024))
 353         {
 354                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 355                 data.Set(10240);
 356         }
 357         return true;
 358 }
 359
 360 bool ValidateMaxWho(ServerConfig* conf, const char*, const char*, ValueItem &data)
 361 {
 362         if ((data.GetInteger() > 65535) || (data.GetInteger() < 1))
 363         {
 364                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"<options:maxwhoresults> size out of range, setting to default of 128.");
 365                 data.Set(128);
 366         }
 367         return true;
 368 }
 369
 370 bool ValidateMotd(ServerConfig* conf, const char*, const char*, ValueItem &data)
 371 {
 372         conf->ReadFile(conf->MOTD, data.GetString());
 373         return true;
 374 }
 375
 376 bool ValidateNotEmpty(ServerConfig*, const char* tag, const char*, ValueItem &data)
 377 {
 378         if (!*data.GetString())
 379                 throw CoreException(std::string("The value for ")+tag+" cannot be empty!");
 380         return true;
 381 }
 382
 383 bool ValidateRules(ServerConfig* conf, const char*, const char*, ValueItem &data)
 384 {
 385         conf->ReadFile(conf->RULES, data.GetString());
 386         return true;
 387 }
 388
 389 bool ValidateModeLists(ServerConfig* conf, const char*, const char*, ValueItem &data)
 390 {
 391         memset(conf->HideModeLists, 0, 256);
 392         for (const unsigned char* x = (const unsigned char*)data.GetString(); *x; ++x)
 393                 conf->HideModeLists[*x] = true;
 394         return true;
 395 }
 396
 397 bool ValidateExemptChanOps(ServerConfig* conf, const char*, const char*, ValueItem &data)
 398 {
 399         memset(conf->ExemptChanOps, 0, 256);
 400         for (const unsigned char* x = (const unsigned char*)data.GetString(); *x; ++x)
 401                 conf->ExemptChanOps[*x] = true;
 402         return true;
 403 }
 404
 405 bool ValidateInvite(ServerConfig* conf, const char*, const char*, ValueItem &data)
 406 {
 407         std::string v = data.GetString();
 408
 409         if (v == "ops")
 410                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_OPS;
 411         else if (v == "all")
 412                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_ALL;
 413         else if (v == "dynamic")
 414                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_DYNAMIC;
 415         else
 416                 conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_NONE;
 417
 418         return true;
 419 }
 420
 421 bool ValidateSID(ServerConfig* conf, const char*, const char*, ValueItem &data)
 422 {
 423         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"Validating server id");
 424
 425         const char *sid = data.GetString();
 426
 427         if (*sid && !conf->GetInstance()->IsSID(sid))
 428         {
 429                 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.");
 430         }
 431
 432         strlcpy(conf->sid, sid, 5);
 433
 434         return true;
 435 }
 436
 437 bool ValidateWhoWas(ServerConfig* conf, const char*, const char*, ValueItem &data)
 438 {
 439         conf->WhoWasMaxKeep = conf->GetInstance()->Duration(data.GetString());
 440
 441         if (conf->WhoWasGroupSize < 0)
 442                 conf->WhoWasGroupSize = 0;
 443
 444         if (conf->WhoWasMaxGroups < 0)
 445                 conf->WhoWasMaxGroups = 0;
 446
 447         if (conf->WhoWasMaxKeep < 3600)
 448         {
 449                 conf->WhoWasMaxKeep = 3600;
 450                 conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"WARNING: <whowas:maxkeep> value less than 3600, setting to default 3600");
 451         }
 452
 453         Command* whowas_command = conf->GetInstance()->Parser->GetHandler("WHOWAS");
 454         if (whowas_command)
 455         {
 456                 std::deque<classbase*> params;
 457                 whowas_command->HandleInternal(WHOWAS_PRUNE, params);
 458         }
 459
 460         return true;
 461 }
 462
 463 /* Callback called before processing the first <connect> tag
 464  */
 465 bool InitConnect(ServerConfig* conf, const char*)
 466 {
 467         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"Reading connect classes...");
 468
 469         for (ClassVector::iterator i = conf->Classes.begin(); i != conf->Classes.end() ; )
 470         {
 471                 ConnectClass* c = *i;
 472
 473                 /* only delete a class with refcount 0 */
 474                 if (c->RefCount == 0)
 475                 {
 476                         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT, "Removing connect class, refcount is 0!");
 477
 478                         /* This was causing a crash, because we'd set i to .begin() just here, but then the for loop's increment would
 479                          * set it to .begin() + 1. Which if it was already the last thing in the list, wasn't good.
 480                          * Now the increment is in the else { } below.
 481                          */
 482                         conf->Classes.erase(i);
 483                         i = conf->Classes.begin(); // start over so we don't trample on a bad iterator
 484                 }
 485                 else
 486                 {
 487                         /* also mark all existing classes disabled, if they still exist in the conf, they will be reenabled. */
 488                         c->SetDisabled(true);
 489                         i++;
 490                 }
 491         }
 492
 493         return true;
 494 }
 495
 496 /* Callback called to process a single <connect> tag
 497  */
 498 bool DoConnect(ServerConfig* conf, const char*, char**, ValueList &values, int*)
 499 {
 500         ConnectClass c;
 501         const char* allow = values[0].GetString(); /* Yeah, there are a lot of values. Live with it. */
 502         const char* deny = values[1].GetString();
 503         const char* password = values[2].GetString();
 504         int timeout = values[3].GetInteger();
 505         int pingfreq = values[4].GetInteger();
 506         int flood = values[5].GetInteger();
 507         int threshold = values[6].GetInteger();
 508         int sendq = values[7].GetInteger();
 509         int recvq = values[8].GetInteger();
 510         int localmax = values[9].GetInteger();
 511         int globalmax = values[10].GetInteger();
 512         int port = values[11].GetInteger();
 513         const char* name = values[12].GetString();
 514         const char* parent = values[13].GetString();
 515         int maxchans = values[14].GetInteger();
 516         unsigned long limit = values[15].GetInteger();
 517         const char* hashtype = values[16].GetString();
 518
 519         /*
 520          * duplicates check: Now we don't delete all connect classes on rehash, we need to ensure we don't add dupes.
 521          * easier said than done, but for now we'll just disallow anything with a duplicate host or name. -- w00t
 522          */
 523         for (ClassVector::iterator item = conf->Classes.begin(); item != conf->Classes.end(); ++item)
 524         {
 525                 ConnectClass* cc = *item;
 526                 if ((*name && (cc->GetName() == name)) || (*allow && (cc->GetHost() == allow)) || (*deny && (cc->GetHost() == deny)))
 527                 {
 528                         /* reenable class so users can be shoved into it :P */
 529                         cc->SetDisabled(false);
 530                         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT, "Not adding class, it already exists!");
 531                         return true;
 532                 }
 533         }
 534
 535         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT,"Adding a connect class!");
 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                         ConnectClass* cc = *item;
 546                         conf->GetInstance()->Logs->Log("CONFIG",DEBUG,"Class: %s", cc->GetName().c_str());
 547                         if (cc->GetName() == parent)
 548                         {
 549                                 ConnectClass* newclass = new ConnectClass(name, cc);
 550                                 newclass->Update(timeout, flood, *allow ? allow : deny, pingfreq, password, threshold, sendq, recvq, localmax, globalmax, maxchans, port, limit);
 551                                 conf->Classes.push_back(newclass);
 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)
 566                                 {
 567                                         (*item)->Update(timeout, flood, allow, pingfreq, password, threshold, sendq, recvq, localmax, globalmax, maxchans, port, limit);
 568                                         return true;
 569                                 }
 570                         }
 571                         ConnectClass* cc = new ConnectClass(name, timeout, flood, allow, pingfreq, password, hashtype, threshold, 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)
 582                                 {
 583                                         (*item)->Update(name, deny);
 584                                         (*item)->SetPort(port);
 585                                         return true;
 586                                 }
 587                         }
 588                         ConnectClass* cc = new ConnectClass(name, deny);
 589                         cc->SetPort(port);
 590                         conf->Classes.push_back(cc);
 591                 }
 592         }
 593
 594         return true;
 595 }
 596
 597 /* Callback called when there are no more <connect> tags
 598  */
 599 bool DoneConnect(ServerConfig *conf, const char*)
 600 {
 601         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT, "Done adding connect classes!");
 602         return true;
 603 }
 604
 605 /* Callback called before processing the first <uline> tag
 606  */
 607 bool InitULine(ServerConfig* conf, const char*)
 608 {
 609         conf->ulines.clear();
 610         return true;
 611 }
 612
 613 /* Callback called to process a single <uline> tag
 614  */
 615 bool DoULine(ServerConfig* conf, const char*, char**, ValueList &values, int*)
 616 {
 617         const char* server = values[0].GetString();
 618         const bool silent = values[1].GetBool();
 619         conf->ulines[server] = silent;
 620         return true;
 621 }
 622
 623 /* Callback called when there are no more <uline> tags
 624  */
 625 bool DoneULine(ServerConfig*, const char*)
 626 {
 627         return true;
 628 }
 629
 630 /* Callback called before processing the first <module> tag
 631  */
 632 bool InitModule(ServerConfig* conf, const char*)
 633 {
 634         old_module_names = conf->GetInstance()->Modules->GetAllModuleNames(0);
 635         new_module_names.clear();
 636         added_modules.clear();
 637         removed_modules.clear();
 638         return true;
 639 }
 640
 641 /* Callback called to process a single <module> tag
 642  */
 643 bool DoModule(ServerConfig*, const char*, char**, ValueList &values, int*)
 644 {
 645         const char* modname = values[0].GetString();
 646         new_module_names.push_back(modname);
 647         return true;
 648 }
 649
 650 /* Callback called when there are no more <module> tags
 651  */
 652 bool DoneModule(ServerConfig*, const char*)
 653 {
 654         // now create a list of new modules that are due to be loaded
 655         // and a seperate list of modules which are due to be unloaded
 656         for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
 657         {
 658                 bool added = true;
 659
 660                 for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
 661                 {
 662                         if (*old == *_new)
 663                                 added = false;
 664                 }
 665
 666                 if (added)
 667                         added_modules.push_back(*_new);
 668         }
 669
 670         for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
 671         {
 672                 bool removed = true;
 673                 for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
 674                 {
 675                         if (*newm == *oldm)
 676                                 removed = false;
 677                 }
 678
 679                 if (removed)
 680                         removed_modules.push_back(*oldm);
 681         }
 682         return true;
 683 }
 684
 685 /* Callback called before processing the first <banlist> tag
 686  */
 687 bool InitMaxBans(ServerConfig* conf, const char*)
 688 {
 689         conf->maxbans.clear();
 690         return true;
 691 }
 692
 693 /* Callback called to process a single <banlist> tag
 694  */
 695 bool DoMaxBans(ServerConfig* conf, const char*, char**, ValueList &values, int*)
 696 {
 697         const char* channel = values[0].GetString();
 698         int limit = values[1].GetInteger();
 699         conf->maxbans[channel] = limit;
 700         return true;
 701 }
 702
 703 /* Callback called when there are no more <banlist> tags.
 704  */
 705 bool DoneMaxBans(ServerConfig*, const char*)
 706 {
 707         return true;
 708 }
 709
 710 void ServerConfig::ReportConfigError(const std::string &errormessage, bool bail, User* user)
 711 {
 712         ServerInstance->Logs->Log("CONFIG",DEFAULT, "There were errors in your configuration file: %s", errormessage.c_str());
 713         if (bail)
 714         {
 715                 /* Unneeded because of the ServerInstance->Log() aboive? */
 716                 printf("There were errors in your configuration:\n%s\n\n",errormessage.c_str());
 717                 ServerInstance->Exit(EXIT_STATUS_CONFIG);
 718         }
 719         else
 720         {
 721                 std::string errors = errormessage;
 722                 std::string::size_type start;
 723                 unsigned int prefixlen;
 724                 start = 0;
 725                 /* ":ServerInstance->Config->ServerName NOTICE user->nick :" */
 726                 if (user)
 727                 {
 728                         prefixlen = strlen(this->ServerName) + strlen(user->nick) + 11;
 729                         user->WriteServ("NOTICE %s :There were errors in the configuration file:",user->nick);
 730                         while (start < errors.length())
 731                         {
 732                                 user->WriteServ("NOTICE %s :%s",user->nick, errors.substr(start, 510 - prefixlen).c_str());
 733                                 start += 510 - prefixlen;
 734                         }
 735                 }
 736                 else
 737                 {
 738                         ServerInstance->SNO->WriteToSnoMask('A', "There were errors in the configuration file:");
 739                         while (start < errors.length())
 740                         {
 741                                 ServerInstance->SNO->WriteToSnoMask('A', errors.substr(start, 360));
 742                                 start += 360;
 743                         }
 744                 }
 745                 return;
 746         }
 747 }
 748
 749 void ServerConfig::Read(bool bail, User* user)
 750 {
 751         int rem = 0, add = 0;      /* Number of modules added, number of modules removed */
 752
 753         static char maxkeep[MAXBUF];    /* Temporary buffer for WhoWasMaxKeep value */
 754         static char hidemodes[MAXBUF];  /* Modes to not allow listing from users below halfop */
 755         static char exemptchanops[MAXBUF];      /* Exempt channel ops from these modes */
 756         static char announceinvites[MAXBUF];    /* options:announceinvites setting */
 757         errstr.clear();
 758
 759         include_stack.clear();
 760
 761         /* These tags MUST occur and must ONLY occur once in the config file */
 762         static const char* Once[] = { "server", "admin", "files", "power", "options", NULL };
 763
 764         Deprecated ChangedConfig[] = {
 765                 {"options",     "hidelinks",    "has been moved to <security:hidelinks> as of 1.2a3"},
 766                 {"options",     "hidewhois",    "has been moved to <security:hidewhois> as of 1.2a3"},
 767                 {"options",     "nouserdns",    "has been moved to <performance:nouserdns> as of 1.2a3"},
 768                 {"options",     "maxwho",       "has been moved to <performance:maxwho> as of 1.2a3"},
 769                 {NULL,          NULL,           NULL}
 770         };
 771
 772         /* These tags can occur ONCE or not at all */
 773         InitialConfig Values[] = {
 774                 {"performance", "softlimit",    "0",                    new ValueContainerUInt (&this->SoftLimit),              DT_INTEGER,  ValidateSoftLimit},
 775                 {"performance", "somaxconn",    SOMAXCONN_S,            new ValueContainerInt  (&this->MaxConn),                DT_INTEGER,  ValidateMaxConn},
 776                 {"options",     "moronbanner",  "Youre banned!",        new ValueContainerChar (this->MoronBanner),             DT_CHARPTR,  NoValidation},
 777                 {"server",      "name",         "",                     new ValueContainerChar (this->ServerName),              DT_HOSTNAME|DT_BOOTONLY, ValidateServerName},
 778                 {"server",      "description",  "Configure Me",         new ValueContainerChar (this->ServerDesc),              DT_CHARPTR,  NoValidation},
 779                 {"server",      "network",      "Network",              new ValueContainerChar (this->Network),                 DT_NOSPACES, NoValidation},
 780                 {"server",      "id",           "",                     new ValueContainerChar (this->sid),                     DT_CHARPTR|DT_BOOTONLY,  ValidateSID},
 781                 {"admin",       "name",         "",                     new ValueContainerChar (this->AdminName),               DT_CHARPTR,  NoValidation},
 782                 {"admin",       "email",        "Mis@configu.red",      new ValueContainerChar (this->AdminEmail),              DT_CHARPTR,  NoValidation},
 783                 {"admin",       "nick",         "Misconfigured",        new ValueContainerChar (this->AdminNick),               DT_CHARPTR,  NoValidation},
 784                 {"files",       "motd",         "",                     new ValueContainerChar (this->motd),                    DT_CHARPTR,  ValidateMotd},
 785                 {"files",       "rules",        "",                     new ValueContainerChar (this->rules),                   DT_CHARPTR,  ValidateRules},
 786                 {"power",       "diepass",      "",                     new ValueContainerChar (this->diepass),                 DT_CHARPTR,  ValidateNotEmpty},
 787                 {"power",       "pause",        "",                     new ValueContainerInt  (&this->DieDelay),               DT_INTEGER,  NoValidation},
 788                 {"power",       "hash",         "",                     new ValueContainerChar (this->powerhash),               DT_CHARPTR,  NoValidation},
 789                 {"power",       "restartpass",  "",                     new ValueContainerChar (this->restartpass),             DT_CHARPTR,  ValidateNotEmpty},
 790                 {"options",     "prefixquit",   "",                     new ValueContainerChar (this->PrefixQuit),              DT_CHARPTR,  NoValidation},
 791                 {"options",     "suffixquit",   "",                     new ValueContainerChar (this->SuffixQuit),              DT_CHARPTR,  NoValidation},
 792                 {"options",     "fixedquit",    "",                     new ValueContainerChar (this->FixedQuit),               DT_CHARPTR,  NoValidation},
 793                 {"options",     "prefixpart",   "",                     new ValueContainerChar (this->PrefixPart),              DT_CHARPTR,  NoValidation},
 794                 {"options",     "suffixpart",   "",                     new ValueContainerChar (this->SuffixPart),              DT_CHARPTR,  NoValidation},
 795                 {"options",     "fixedpart",    "",                     new ValueContainerChar (this->FixedPart),               DT_CHARPTR,  NoValidation},
 796                 {"performance", "netbuffersize","10240",                new ValueContainerInt  (&this->NetBufferSize),          DT_INTEGER,  ValidateNetBufferSize},
 797                 {"performance", "maxwho",       "128",                  new ValueContainerInt  (&this->MaxWhoResults),          DT_INTEGER,  ValidateMaxWho},
 798                 {"options",     "allowhalfop",  "0",                    new ValueContainerBool (&this->AllowHalfop),            DT_BOOLEAN,  NoValidation},
 799                 {"dns",         "server",       "",                     new ValueContainerChar (this->DNSServer),               DT_IPADDRESS,DNSServerValidator},
 800                 {"dns",         "timeout",      "5",                    new ValueContainerInt  (&this->dns_timeout),            DT_INTEGER,  NoValidation},
 801                 {"options",     "moduledir",    MOD_PATH,               new ValueContainerChar (this->ModPath),                 DT_CHARPTR,  NoValidation},
 802                 {"disabled",    "commands",     "",                     new ValueContainerChar (this->DisabledCommands),        DT_CHARPTR,  NoValidation},
 803                 {"security",    "userstats",    "",                     new ValueContainerChar (this->UserStats),               DT_CHARPTR,  NoValidation},
 804                 {"security",    "customversion","",                     new ValueContainerChar (this->CustomVersion),           DT_CHARPTR,  NoValidation},
 805                 {"security",    "hidesplits",   "0",                    new ValueContainerBool (&this->HideSplits),             DT_BOOLEAN,  NoValidation},
 806                 {"security",    "hidebans",     "0",                    new ValueContainerBool (&this->HideBans),               DT_BOOLEAN,  NoValidation},
 807                 {"security",    "hidewhois",    "",                     new ValueContainerChar (this->HideWhoisServer),         DT_NOSPACES, NoValidation},
 808                 {"security",    "hidekills",    "",                     new ValueContainerChar (this->HideKillsServer),         DT_NOSPACES,  NoValidation},
 809                 {"security",    "operspywhois", "0",                    new ValueContainerBool (&this->OperSpyWhois),           DT_BOOLEAN,  NoValidation},
 810                 {"performance", "nouserdns",    "0",                    new ValueContainerBool (&this->NoUserDns),              DT_BOOLEAN,  NoValidation},
 811                 {"options",     "syntaxhints",  "0",                    new ValueContainerBool (&this->SyntaxHints),            DT_BOOLEAN,  NoValidation},
 812                 {"options",     "cyclehosts",   "0",                    new ValueContainerBool (&this->CycleHosts),             DT_BOOLEAN,  NoValidation},
 813                 {"options",     "ircumsgprefix","0",                    new ValueContainerBool (&this->UndernetMsgPrefix),      DT_BOOLEAN,  NoValidation},
 814                 {"security",    "announceinvites", "1",                 new ValueContainerChar (announceinvites),               DT_CHARPTR,  ValidateInvite},
 815                 {"options",     "hostintopic",  "1",                    new ValueContainerBool (&this->FullHostInTopic),        DT_BOOLEAN,  NoValidation},
 816                 {"security",    "hidemodes",    "",                     new ValueContainerChar (hidemodes),                     DT_CHARPTR,  ValidateModeLists},
 817                 {"options",     "exemptchanops","",                     new ValueContainerChar (exemptchanops),                 DT_CHARPTR,  ValidateExemptChanOps},
 818                 {"security",    "maxtargets",   "20",                   new ValueContainerUInt (&this->MaxTargets),             DT_INTEGER,  ValidateMaxTargets},
 819                 {"options",     "defaultmodes", "nt",                   new ValueContainerChar (this->DefaultModes),            DT_CHARPTR,  NoValidation},
 820                 {"pid",         "file",         "",                     new ValueContainerChar (this->PID),                     DT_CHARPTR,  NoValidation},
 821                 {"whowas",      "groupsize",    "10",                   new ValueContainerInt  (&this->WhoWasGroupSize),        DT_INTEGER,  NoValidation},
 822                 {"whowas",      "maxgroups",    "10240",                new ValueContainerInt  (&this->WhoWasMaxGroups),        DT_INTEGER,  NoValidation},
 823                 {"whowas",      "maxkeep",      "3600",                 new ValueContainerChar (maxkeep),                       DT_CHARPTR,  ValidateWhoWas},
 824                 {"die",         "value",        "",                     new ValueContainerChar (this->DieValue),                DT_CHARPTR,  NoValidation},
 825                 {"channels",    "users",        "20",                   new ValueContainerUInt (&this->MaxChans),               DT_INTEGER,  NoValidation},
 826                 {"channels",    "opers",        "60",                   new ValueContainerUInt (&this->OperMaxChans),           DT_INTEGER,  NoValidation},
 827                 {NULL,          NULL,           NULL,                   NULL,                                                   DT_NOTHING,  NoValidation}
 828         };
 829
 830         /* These tags can occur multiple times, and therefore they have special code to read them
 831          * which is different to the code for reading the singular tags listed above.
 832          */
 833         MultiConfig MultiValues[] = {
 834
 835                 {"connect",
 836                                 {"allow",       "deny",         "password",     "timeout",      "pingfreq",     "flood",
 837                                 "threshold",    "sendq",        "recvq",        "localmax",     "globalmax",    "port",
 838                                 "name",         "parent",       "maxchans",     "limit",        "hash",
 839                                 NULL},
 840                                 {"",            "",             "",             "",             "120",          "",
 841                                  "",            "",             "",             "3",            "3",            "0",
 842                                  "",            "",             "0",        "0",        "",
 843                                  NULL},
 844                                 {DT_IPADDRESS|DT_ALLOW_WILD,
 845                                                 DT_IPADDRESS|DT_ALLOW_WILD,
 846                                                                 DT_CHARPTR,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,
 847                                 DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,
 848                                 DT_NOSPACES,    DT_NOSPACES,    DT_INTEGER,     DT_INTEGER,     DT_CHARPTR},
 849                                 InitConnect, DoConnect, DoneConnect},
 850
 851                 {"uline",
 852                                 {"server",      "silent",       NULL},
 853                                 {"",            "0",            NULL},
 854                                 {DT_HOSTNAME,   DT_BOOLEAN},
 855                                 InitULine,DoULine,DoneULine},
 856
 857                 {"banlist",
 858                                 {"chan",        "limit",        NULL},
 859                                 {"",            "",             NULL},
 860                                 {DT_CHARPTR,    DT_INTEGER},
 861                                 InitMaxBans, DoMaxBans, DoneMaxBans},
 862
 863                 {"module",
 864                                 {"name",        NULL},
 865                                 {"",            NULL},
 866                                 {DT_CHARPTR},
 867                                 InitModule, DoModule, DoneModule},
 868
 869                 {"badip",
 870                                 {"reason",      "ipmask",       NULL},
 871                                 {"No reason",   "",             NULL},
 872                                 {DT_CHARPTR,    DT_IPADDRESS|DT_ALLOW_WILD},
 873                                 InitXLine, DoZLine, DoneConfItem},
 874
 875                 {"badnick",
 876                                 {"reason",      "nick",         NULL},
 877                                 {"No reason",   "",             NULL},
 878                                 {DT_CHARPTR,    DT_CHARPTR},
 879                                 InitXLine, DoQLine, DoneConfItem},
 880
 881                 {"badhost",
 882                                 {"reason",      "host",         NULL},
 883                                 {"No reason",   "",             NULL},
 884                                 {DT_CHARPTR,    DT_CHARPTR},
 885                                 InitXLine, DoKLine, DoneConfItem},
 886
 887                 {"exception",
 888                                 {"reason",      "host",         NULL},
 889                                 {"No reason",   "",             NULL},
 890                                 {DT_CHARPTR,    DT_CHARPTR},
 891                                 InitXLine, DoELine, DoneELine},
 892
 893                 {"type",
 894                                 {"name",        "classes",      NULL},
 895                                 {"",            "",             NULL},
 896                                 {DT_NOSPACES,   DT_CHARPTR},
 897                                 InitTypes, DoType, DoneClassesAndTypes},
 898
 899                 {"class",
 900                                 {"name",        "commands",     "usermodes",    "chanmodes",    NULL},
 901                                 {"",            "",             "",             "",             NULL},
 902                                 {DT_NOSPACES,   DT_CHARPTR,     DT_CHARPTR,     DT_CHARPTR},
 903                                 InitClasses, DoClass, DoneClassesAndTypes},
 904
 905                 {NULL,
 906                                 {NULL},
 907                                 {NULL},
 908                                 {0},
 909                                 NULL, NULL, NULL}
 910         };
 911
 912         /* Load and parse the config file, if there are any errors then explode */
 913
 914         /* Make a copy here so if it fails then we can carry on running with an unaffected config */
 915         newconfig.clear();
 916
 917         if (!this->DoInclude(newconfig, ServerInstance->ConfigFileName, errstr))
 918         {
 919                 ReportConfigError(errstr.str(), bail, user);
 920                 return;
 921         }
 922
 923         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 924         try
 925         {
 926                 /* Check we dont have more than one of singular tags, or any of them missing
 927                  */
 928                 for (int Index = 0; Once[Index]; Index++)
 929                         if (!CheckOnce(Once[Index], newconfig))
 930                                 return;
 931
 932                 for (int Index = 0; ChangedConfig[Index].tag; Index++)
 933                 {
 934                         char item[MAXBUF];
 935                         *item = 0;
 936                         if (ConfValue(newconfig, ChangedConfig[Index].tag, ChangedConfig[Index].value, "", 0, item, MAXBUF, true) || *item)
 937                                 throw CoreException(std::string("Your configuration contains a deprecated value: <") + ChangedConfig[Index].tag + ":" + ChangedConfig[Index].value + "> - " + ChangedConfig[Index].reason);
 938                         else
 939                                 ServerInstance->Logs->Log("CONFIG",DEBUG,"Deprecated item <%s:%s> does not exist, good.", ChangedConfig[Index].tag, ChangedConfig[Index].value);
 940                 }
 941
 942                 /* Read the values of all the tags which occur once or not at all, and call their callbacks.
 943                  */
 944                 for (int Index = 0; Values[Index].tag; Index++)
 945                 {
 946                         char item[MAXBUF];
 947                         int dt = Values[Index].datatype;
 948                         bool allow_newlines = ((dt & DT_ALLOW_NEWLINE) > 0);
 949                         bool allow_wild = ((dt & DT_ALLOW_WILD) > 0);
 950                         bool bootonly = ((dt & DT_BOOTONLY) > 0);
 951                         dt &= ~DT_ALLOW_NEWLINE;
 952                         dt &= ~DT_ALLOW_WILD;
 953                         dt &= ~DT_BOOTONLY;
 954
 955                         /* Silently ignore boot only values */
 956                         if (bootonly && !bail)
 957                                 continue;
 958
 959                         ConfValue(newconfig, Values[Index].tag, Values[Index].value, Values[Index].default_value, 0, item, MAXBUF, allow_newlines);
 960                         ValueItem vi(item);
 961
 962                         if (!Values[Index].validation_function(this, Values[Index].tag, Values[Index].value, vi))
 963                                 throw CoreException("One or more values in your configuration file failed to validate. Please see your ircd.log for more information.");
 964
 965                         ServerInstance->Threads->Mutex(true);
 966                         switch (dt)
 967                         {
 968                                 case DT_NOSPACES:
 969                                 {
 970                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 971                                         this->ValidateNoSpaces(vi.GetString(), Values[Index].tag, Values[Index].value);
 972                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 973                                 }
 974                                 break;
 975                                 case DT_HOSTNAME:
 976                                 {
 977                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 978                                         this->ValidateHostname(vi.GetString(), Values[Index].tag, Values[Index].value);
 979                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 980                                         ServerInstance->Logs->Log("CONFIG",DEFAULT,"Got %s", vi.GetString());
 981                                 }
 982                                 break;
 983                                 case DT_IPADDRESS:
 984                                 {
 985                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 986                                         this->ValidateIP(vi.GetString(), Values[Index].tag, Values[Index].value, allow_wild);
 987                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 988                                 }
 989                                 break;
 990                                 case DT_CHANNEL:
 991                                 {
 992                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 993                                         if (*(vi.GetString()) && !ServerInstance->IsChannel(vi.GetString()))
 994                                         {
 995                                                 ServerInstance->Threads->Mutex(false);
 996                                                 throw CoreException("The value of <"+std::string(Values[Index].tag)+":"+Values[Index].value+"> is not a valid channel name");
 997                                         }
 998                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 999                                 }
1000                                 break;
1001                                 case DT_CHARPTR:
1002                                 {
1003                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
1004                                         /* Make sure we also copy the null terminator */
1005                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
1006                                 }
1007                                 break;
1008                                 case DT_INTEGER:
1009                                 {
1010                                         int val = vi.GetInteger();
1011                                         ValueContainerInt* vci = (ValueContainerInt*)Values[Index].val;
1012                                         vci->Set(&val, sizeof(int));
1013                                 }
1014                                 break;
1015                                 case DT_BOOLEAN:
1016                                 {
1017                                         bool val = vi.GetBool();
1018                                         ValueContainerBool* vcb = (ValueContainerBool*)Values[Index].val;
1019                                         vcb->Set(&val, sizeof(bool));
1020                                 }
1021                                 break;
1022                                 default:
1023                                         /* You don't want to know what happens if someones bad code sends us here. */
1024                                 break;
1025                         }
1026                         /* We're done with this now */
1027                         delete Values[Index].val;
1028                         ServerInstance->Threads->Mutex(false);
1029                 }
1030
1031                 /* Read the multiple-tag items (class tags, connect tags, etc)
1032                  * and call the callbacks associated with them. We have three
1033                  * callbacks for these, a 'start', 'item' and 'end' callback.
1034                  */
1035                 for (int Index = 0; MultiValues[Index].tag; Index++)
1036                 {
1037                         ServerInstance->Threads->Mutex(true);
1038                         MultiValues[Index].init_function(this, MultiValues[Index].tag);
1039                         ServerInstance->Threads->Mutex(false);
1040
1041                         int number_of_tags = ConfValueEnum(newconfig, MultiValues[Index].tag);
1042
1043                         for (int tagnum = 0; tagnum < number_of_tags; tagnum++)
1044                         {
1045                                 ValueList vl;
1046                                 for (int valuenum = 0; MultiValues[Index].items[valuenum]; valuenum++)
1047                                 {
1048                                         int dt = MultiValues[Index].datatype[valuenum];
1049                                         bool allow_newlines =  ((dt & DT_ALLOW_NEWLINE) > 0);
1050                                         bool allow_wild = ((dt & DT_ALLOW_WILD) > 0);
1051                                         dt &= ~DT_ALLOW_NEWLINE;
1052                                         dt &= ~DT_ALLOW_WILD;
1053
1054                                         ServerInstance->Threads->Mutex(true);
1055                                         /* We catch and rethrow any exception here just so we can free our mutex
1056                                          */
1057                                         try
1058                                         {
1059                                                 switch (dt)
1060                                                 {
1061                                                         case DT_NOSPACES:
1062                                                         {
1063                                                                 char item[MAXBUF];
1064                                                                 if (ConfValue(newconfig, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1065                                                                         vl.push_back(ValueItem(item));
1066                                                                 else
1067                                                                         vl.push_back(ValueItem(""));
1068                                                                 this->ValidateNoSpaces(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum]);
1069                                                         }
1070                                                         break;
1071                                                         case DT_HOSTNAME:
1072                                                         {
1073                                                                 char item[MAXBUF];
1074                                                                 if (ConfValue(newconfig, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1075                                                                         vl.push_back(ValueItem(item));
1076                                                                 else
1077                                                                         vl.push_back(ValueItem(""));
1078                                                                 this->ValidateHostname(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum]);
1079                                                         }
1080                                                         break;
1081                                                         case DT_IPADDRESS:
1082                                                         {
1083                                                                 char item[MAXBUF];
1084                                                                 if (ConfValue(newconfig, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1085                                                                         vl.push_back(ValueItem(item));
1086                                                                 else
1087                                                                         vl.push_back(ValueItem(""));
1088                                                                 this->ValidateIP(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum], allow_wild);
1089                                                         }
1090                                                         break;
1091                                                         case DT_CHANNEL:
1092                                                         {
1093                                                                 char item[MAXBUF];
1094                                                                 if (ConfValue(newconfig, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1095                                                                         vl.push_back(ValueItem(item));
1096                                                                 else
1097                                                                         vl.push_back(ValueItem(""));
1098                                                                 if (!ServerInstance->IsChannel(vl[vl.size()-1].GetString()))
1099                                                                         throw CoreException("The value of <"+std::string(MultiValues[Index].tag)+":"+MultiValues[Index].items[valuenum]+"> number "+ConvToStr(tagnum + 1)+" is not a valid channel name");
1100                                                         }
1101                                                         break;
1102                                                         case DT_CHARPTR:
1103                                                         {
1104                                                                 char item[MAXBUF];
1105                                                                 if (ConfValue(newconfig, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1106                                                                         vl.push_back(ValueItem(item));
1107                                                                 else
1108                                                                         vl.push_back(ValueItem(""));
1109                                                         }
1110                                                         break;
1111                                                         case DT_INTEGER:
1112                                                         {
1113                                                                 int item = 0;
1114                                                                 if (ConfValueInteger(newconfig, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item))
1115                                                                         vl.push_back(ValueItem(item));
1116                                                                 else
1117                                                                         vl.push_back(ValueItem(0));
1118                                                         }
1119                                                         break;
1120                                                         case DT_BOOLEAN:
1121                                                         {
1122                                                                 bool item = ConfValueBool(newconfig, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum);
1123                                                                 vl.push_back(ValueItem(item));
1124                                                         }
1125                                                         break;
1126                                                         default:
1127                                                                 /* Someone was smoking craq if we got here, and we're all gonna die. */
1128                                                         break;
1129                                                 }
1130                                         }
1131                                         catch (CoreException &e)
1132                                         {
1133                                                 ServerInstance->Threads->Mutex(false);
1134                                                 throw e;
1135                                         }
1136                                         ServerInstance->Threads->Mutex(false);
1137                                 }
1138                                 MultiValues[Index].validation_function(this, MultiValues[Index].tag, (char**)MultiValues[Index].items, vl, MultiValues[Index].datatype);
1139                         }
1140                         MultiValues[Index].finish_function(this, MultiValues[Index].tag);
1141                 }
1142
1143         }
1144
1145         catch (CoreException &ce)
1146         {
1147                 ReportConfigError(ce.GetReason(), bail, user);
1148                 return;
1149         }
1150
1151         ServerInstance->Threads->Mutex(true);
1152         for (int i = 0; i < ConfValueEnum(newconfig, "type"); ++i)
1153         {
1154                 char item[MAXBUF], classn[MAXBUF], classes[MAXBUF];
1155                 std::string classname;
1156                 ConfValue(newconfig, "type", "classes", "", i, classes, MAXBUF, false);
1157                 irc::spacesepstream str(classes);
1158                 ConfValue(newconfig, "type", "name", "", i, item, MAXBUF, false);
1159                 while (str.GetToken(classname))
1160                 {
1161                         std::string lost;
1162                         bool foundclass = false;
1163                         for (int j = 0; j < ConfValueEnum(newconfig, "class"); ++j)
1164                         {
1165                                 ConfValue(newconfig, "class", "name", "", j, classn, MAXBUF, false);
1166                                 if (!strcmp(classn, classname.c_str()))
1167                                 {
1168                                         foundclass = true;
1169                                         break;
1170                                 }
1171                         }
1172                         if (!foundclass)
1173                         {
1174                                 if (user)
1175                                         user->WriteServ("NOTICE %s :*** Warning: Oper type '%s' has a missing class named '%s', this does nothing!", user->nick, item, classname.c_str());
1176                                 else
1177                                 {
1178                                         if (bail)
1179                                                 printf("Warning: Oper type '%s' has a missing class named '%s', this does nothing!\n", item, classname.c_str());
1180                                         else
1181                                                 ServerInstance->SNO->WriteToSnoMask('A', "Warning: Oper type '%s' has a missing class named '%s', this does nothing!", item, classname.c_str());
1182                                 }
1183                         }
1184                 }
1185         }
1186
1187         /* If we succeeded, set the ircd config to the new one */
1188         this->config_data = newconfig;
1189
1190         ServerInstance->Threads->Mutex(false);
1191
1192         // write once here, to try it out and make sure its ok
1193         ServerInstance->WritePID(this->PID);
1194
1195         /* Switch over logfiles */
1196         ServerInstance->Logs->CloseLogs();
1197         ServerInstance->Logs->OpenFileLogs();
1198
1199         ServerInstance->Logs->Log("CONFIG", DEFAULT, "Done reading configuration file.");
1200
1201         /* If we're rehashing, let's load any new modules, and unload old ones
1202          */
1203         if (!bail)
1204         {
1205                 int found_ports = 0;
1206                 FailedPortList pl;
1207                 ServerInstance->BindPorts(false, found_ports, pl);
1208
1209                 if (pl.size() && user)
1210                 {
1211                         ServerInstance->Threads->Mutex(true);
1212                         user->WriteServ("NOTICE %s :*** Not all your client ports could be bound.", user->nick);
1213                         user->WriteServ("NOTICE %s :*** The following port(s) failed to bind:", user->nick);
1214                         int j = 1;
1215                         for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
1216                         {
1217                                 user->WriteServ("NOTICE %s :*** %d.   IP: %s     Port: %lu", user->nick, j, i->first.empty() ? "<all>" : i->first.c_str(), (unsigned long)i->second);
1218                         }
1219                         ServerInstance->Threads->Mutex(false);
1220                 }
1221
1222                 ServerInstance->Threads->Mutex(true);
1223                 if (!removed_modules.empty())
1224                 {
1225                         for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
1226                         {
1227                                 if (ServerInstance->Modules->Unload(removing->c_str()))
1228                                 {
1229                                         ServerInstance->SNO->WriteToSnoMask('A', "*** REHASH UNLOADED MODULE: %s",removing->c_str());
1230
1231                                         if (user)
1232                                                 user->WriteNumeric(973, "%s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
1233
1234                                         rem++;
1235                                 }
1236                                 else
1237                                 {
1238                                         if (user)
1239                                                 user->WriteNumeric(972, "%s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ServerInstance->Modules->LastError().c_str());
1240                                 }
1241                         }
1242                 }
1243
1244                 if (!added_modules.empty())
1245                 {
1246                         for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
1247                         {
1248                                 if (ServerInstance->Modules->Load(adding->c_str()))
1249                                 {
1250                                         ServerInstance->SNO->WriteToSnoMask('A', "*** REHASH LOADED MODULE: %s",adding->c_str());
1251
1252                                         if (user)
1253                                                 user->WriteNumeric(975, "%s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
1254
1255                                         add++;
1256                                 }
1257                                 else
1258                                 {
1259                                         if (user)
1260                                                 user->WriteNumeric(974, "%s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ServerInstance->Modules->LastError().c_str());
1261                                 }
1262                         }
1263                 }
1264
1265                 ServerInstance->Logs->Log("CONFIG", DEFAULT, "Successfully unloaded %lu of %lu modules and loaded %lu of %lu modules.",(unsigned long)rem,(unsigned long)removed_modules.size(),(unsigned long)add,(unsigned long)added_modules.size());
1266
1267                 ServerInstance->Threads->Mutex(false);
1268
1269         }
1270
1271         /** Note: This is safe, the method checks for user == NULL */
1272         ServerInstance->Threads->Mutex(true);
1273         ServerInstance->Parser->SetupCommandTable(user);
1274         ServerInstance->Threads->Mutex(false);
1275
1276         if (user)
1277                 user->WriteServ("NOTICE %s :*** Successfully rehashed server.", user->nick);
1278         else
1279                 ServerInstance->SNO->WriteToSnoMask('A', "*** Successfully rehashed server.");
1280
1281 }
1282
1283
1284 bool ServerConfig::LoadConf(ConfigDataHash &target, FILE* &conf, const char* filename, std::ostringstream &errorstream)
1285 {
1286         std::string line;
1287         char ch;
1288         long linenumber;
1289         bool in_tag;
1290         bool in_quote;
1291         bool in_comment;
1292         int character_count = 0;
1293
1294         linenumber = 1;
1295         in_tag = false;
1296         in_quote = false;
1297         in_comment = false;
1298
1299         ServerInstance->Logs->Log("CONFIG", DEBUG, "Reading %s", filename);
1300
1301         /* Check if the file open failed first */
1302         if (!conf)
1303         {
1304                 errorstream << "LoadConf: Couldn't open config file: " << filename << std::endl;
1305                 return false;
1306         }
1307
1308         for (unsigned int t = 0; t < include_stack.size(); t++)
1309         {
1310                 if (std::string(filename) == include_stack[t])
1311                 {
1312                         errorstream << "File " << filename << " is included recursively (looped inclusion)." << std::endl;
1313                         return false;
1314                 }
1315         }
1316
1317         /* It's not already included, add it to the list of files we've loaded */
1318         include_stack.push_back(filename);
1319
1320         /* Start reading characters... */
1321         while (!feof(conf))
1322         {
1323                 ch = fgetc(conf);
1324                 /*
1325                  * Fix for moronic windows issue spotted by Adremelech.
1326                  * Some windows editors save text files as utf-16, which is
1327                  * a total pain in the ass to parse. Users should save in the
1328                  * right config format! If we ever see a file where the first
1329                  * byte is 0xFF or 0xFE, or the second is 0xFF or 0xFE, then
1330                  * this is most likely a utf-16 file. Bail out and insult user.
1331                  */
1332                 if ((character_count++ < 2) && (ch == '\xFF' || ch == '\xFE'))
1333                 {
1334                         errorstream << "File " << filename << " cannot be read, as it is encoded in braindead UTF-16. Save your file as plain ASCII!" << std::endl;
1335                         return false;
1336                 }
1337
1338                 /*
1339                  * Here we try and get individual tags on separate lines,
1340                  * this would be so easy if we just made people format
1341                  * their config files like that, but they don't so...
1342                  * We check for a '<' and then know the line is over when
1343                  * we get a '>' not inside quotes. If we find two '<' and
1344                  * no '>' then die with an error.
1345                  */
1346
1347                 if ((ch == '#') && !in_quote)
1348                         in_comment = true;
1349
1350                 switch (ch)
1351                 {
1352                         case '\n':
1353                                 if (in_quote)
1354                                         line += '\n';
1355                                 linenumber++;
1356                         case '\r':
1357                                 if (!in_quote)
1358                                         in_comment = false;
1359                         case '\0':
1360                                 continue;
1361                         case '\t':
1362                                 ch = ' ';
1363                 }
1364
1365                 if(in_comment)
1366                         continue;
1367
1368                 /* XXX: Added by Brain, May 1st 2006 - Escaping of characters.
1369                  * Note that this WILL NOT usually allow insertion of newlines,
1370                  * because a newline is two characters long. Use it primarily to
1371                  * insert the " symbol.
1372                  *
1373                  * Note that this also involves a further check when parsing the line,
1374                  * which can be found below.
1375                  */
1376                 if ((ch == '\\') && (in_quote) && (in_tag))
1377                 {
1378                         line += ch;
1379                         char real_character;
1380                         if (!feof(conf))
1381                         {
1382                                 real_character = fgetc(conf);
1383                                 if (real_character == 'n')
1384                                         real_character = '\n';
1385                                 line += real_character;
1386                                 continue;
1387                         }
1388                         else
1389                         {
1390                                 errorstream << "End of file after a \\, what did you want to escape?: " << filename << ":" << linenumber << std::endl;
1391                                 return false;
1392                         }
1393                 }
1394
1395                 if (ch != '\r')
1396                         line += ch;
1397
1398                 if (ch == '<')
1399                 {
1400                         if (in_tag)
1401                         {
1402                                 if (!in_quote)
1403                                 {
1404                                         errorstream << "Got another opening < when the first one wasn't closed: " << filename << ":" << linenumber << std::endl;
1405                                         return false;
1406                                 }
1407                         }
1408                         else
1409                         {
1410                                 if (in_quote)
1411                                 {
1412                                         errorstream << "We're in a quote but outside a tag, interesting. " << filename << ":" << linenumber << std::endl;
1413                                         return false;
1414                                 }
1415                                 else
1416                                 {
1417                                         // errorstream << "Opening new config tag on line " << linenumber << std::endl;
1418                                         in_tag = true;
1419                                 }
1420                         }
1421                 }
1422                 else if (ch == '"')
1423                 {
1424                         if (in_tag)
1425                         {
1426                                 if (in_quote)
1427                                 {
1428                                         // errorstream << "Closing quote in config tag on line " << linenumber << std::endl;
1429                                         in_quote = false;
1430                                 }
1431                                 else
1432                                 {
1433                                         // errorstream << "Opening quote in config tag on line " << linenumber << std::endl;
1434                                         in_quote = true;
1435                                 }
1436                         }
1437                         else
1438                         {
1439                                 if (in_quote)
1440                                 {
1441                                         errorstream << "Found a (closing) \" outside a tag: " << filename << ":" << linenumber << std::endl;
1442                                 }
1443                                 else
1444                                 {
1445                                         errorstream << "Found a (opening) \" outside a tag: " << filename << ":" << linenumber << std::endl;
1446                                 }
1447                         }
1448                 }
1449                 else if (ch == '>')
1450                 {
1451                         if (!in_quote)
1452                         {
1453                                 if (in_tag)
1454                                 {
1455                                         // errorstream << "Closing config tag on line " << linenumber << std::endl;
1456                                         in_tag = false;
1457
1458                                         /*
1459                                          * If this finds an <include> then ParseLine can simply call
1460                                          * LoadConf() and load the included config into the same ConfigDataHash
1461                                          */
1462                                         if (!this->ParseLine(target, line, linenumber, errorstream))
1463                                                 return false;
1464
1465                                         line.clear();
1466                                 }
1467                                 else
1468                                 {
1469                                         errorstream << "Got a closing > when we weren't inside a tag: " << filename << ":" << linenumber << std::endl;
1470                                         return false;
1471                                 }
1472                         }
1473                 }
1474         }
1475
1476         /* 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 */
1477         if (in_comment || in_quote)
1478         {
1479                 errorstream << "Reached end of file whilst still inside a quoted section or tag. This is most likely an error or there \
1480                         is a newline missing from the end of the file: " << filename << ":" << linenumber << std::endl;
1481         }
1482
1483         return true;
1484 }
1485
1486
1487 bool ServerConfig::LoadConf(ConfigDataHash &target, FILE* &conf, const std::string &filename, std::ostringstream &errorstream)
1488 {
1489         return this->LoadConf(target, conf, filename.c_str(), errorstream);
1490 }
1491
1492 bool ServerConfig::ParseLine(ConfigDataHash &target, std::string &line, long &linenumber, std::ostringstream &errorstream)
1493 {
1494         std::string tagname;
1495         std::string current_key;
1496         std::string current_value;
1497         KeyValList results;
1498         bool got_name;
1499         bool got_key;
1500         bool in_quote;
1501
1502         got_name = got_key = in_quote = false;
1503
1504         for(std::string::iterator c = line.begin(); c != line.end(); c++)
1505         {
1506                 if (!got_name)
1507                 {
1508                         /* We don't know the tag name yet. */
1509
1510                         if (*c != ' ')
1511                         {
1512                                 if (*c != '<')
1513                                 {
1514                                         tagname += *c;
1515                                 }
1516                         }
1517                         else
1518                         {
1519                                 /* We got to a space, we should have the tagname now. */
1520                                 if(tagname.length())
1521                                 {
1522                                         got_name = true;
1523                                 }
1524                         }
1525                 }
1526                 else
1527                 {
1528                         /* We have the tag name */
1529                         if (!got_key)
1530                         {
1531                                 /* We're still reading the key name */
1532                                 if (*c != '=')
1533                                 {
1534                                         if (*c != ' ')
1535                                         {
1536                                                 current_key += *c;
1537                                         }
1538                                 }
1539                                 else
1540                                 {
1541                                         /* We got an '=', end of the key name. */
1542                                         got_key = true;
1543                                 }
1544                         }
1545                         else
1546                         {
1547                                 /* We have the key name, now we're looking for quotes and the value */
1548
1549                                 /* Correctly handle escaped characters here.
1550                                  * See the XXX'ed section above.
1551                                  */
1552                                 if ((*c == '\\') && (in_quote))
1553                                 {
1554                                         c++;
1555                                         if (*c == 'n')
1556                                                 current_value += '\n';
1557                                         else
1558                                                 current_value += *c;
1559                                         continue;
1560                                 }
1561                                 else if ((*c == '\n') && (in_quote))
1562                                 {
1563                                         /* Got a 'real' \n, treat it as part of the value */
1564                                         current_value += '\n';
1565                                         linenumber++;
1566                                         continue;
1567                                 }
1568                                 else if ((*c == '\r') && (in_quote))
1569                                         /* Got a \r, drop it */
1570                                         continue;
1571
1572                                 if (*c == '"')
1573                                 {
1574                                         if (!in_quote)
1575                                         {
1576                                                 /* We're not already in a quote. */
1577                                                 in_quote = true;
1578                                         }
1579                                         else
1580                                         {
1581                                                 /* Leaving the quotes, we have the current value */
1582                                                 results.push_back(KeyVal(current_key, current_value));
1583
1584                                                 // std::cout << "<" << tagname << ":" << current_key << "> " << current_value << std::endl;
1585
1586                                                 in_quote = false;
1587                                                 got_key = false;
1588
1589                                                 if ((tagname == "include") && (current_key == "file"))
1590                                                 {
1591                                                         if (!this->DoInclude(target, current_value, errorstream))
1592                                                                 return false;
1593                                                 }
1594                                                 else if ((tagname == "include") && (current_key == "executable"))
1595                                                 {
1596                                                         /* Pipe an executable and use its stdout as config data */
1597                                                         if (!this->DoPipe(target, current_value, errorstream))
1598                                                                 return false;
1599                                                 }
1600
1601                                                 current_key.clear();
1602                                                 current_value.clear();
1603                                         }
1604                                 }
1605                                 else
1606                                 {
1607                                         if (in_quote)
1608                                         {
1609                                                 current_value += *c;
1610                                         }
1611                                 }
1612                         }
1613                 }
1614         }
1615
1616         /* Finished parsing the tag, add it to the config hash */
1617         target.insert(std::pair<std::string, KeyValList > (tagname, results));
1618
1619         return true;
1620 }
1621
1622 bool ServerConfig::DoPipe(ConfigDataHash &target, const std::string &file, std::ostringstream &errorstream)
1623 {
1624         FILE* conf = popen(file.c_str(), "r");
1625         bool ret = false;
1626
1627         if (conf)
1628         {
1629                 ret = LoadConf(target, conf, file.c_str(), errorstream);
1630                 pclose(conf);
1631         }
1632         else
1633                 errorstream << "Couldn't execute: " << file << std::endl;
1634
1635         return ret;
1636 }
1637
1638 bool ServerConfig::DoInclude(ConfigDataHash &target, const std::string &file, std::ostringstream &errorstream)
1639 {
1640         std::string confpath;
1641         std::string newfile;
1642         std::string::size_type pos;
1643
1644         confpath = ServerInstance->ConfigFileName;
1645         newfile = file;
1646
1647         std::replace(newfile.begin(),newfile.end(),'\\','/');
1648         std::replace(confpath.begin(),confpath.end(),'\\','/');
1649
1650         if ((newfile[0] != '/') && (newfile.find("://") == std::string::npos))
1651         {
1652                 if((pos = confpath.rfind("/")) != std::string::npos)
1653                 {
1654                         /* Leaves us with just the path */
1655                         newfile = confpath.substr(0, pos) + std::string("/") + newfile;
1656                 }
1657                 else
1658                 {
1659                         errorstream << "Couldn't get config path from: " << ServerInstance->ConfigFileName << std::endl;
1660                         return false;
1661                 }
1662         }
1663
1664         FILE* conf = fopen(newfile.c_str(), "r");
1665         bool ret = false;
1666
1667         if (conf)
1668         {
1669                 ret = LoadConf(target, conf, newfile, errorstream);
1670                 fclose(conf);
1671         }
1672         else
1673                 errorstream << "Couldn't open config file: " << file << std::endl;
1674
1675         return ret;
1676 }
1677
1678 bool ServerConfig::ConfValue(ConfigDataHash &target, const char* tag, const char* var, int index, char* result, int length, bool allow_linefeeds)
1679 {
1680         return ConfValue(target, tag, var, "", index, result, length, allow_linefeeds);
1681 }
1682
1683 bool ServerConfig::ConfValue(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, char* result, int length, bool allow_linefeeds)
1684 {
1685         std::string value;
1686         bool r = ConfValue(target, std::string(tag), std::string(var), std::string(default_value), index, value, allow_linefeeds);
1687         strlcpy(result, value.c_str(), length);
1688         return r;
1689 }
1690
1691 bool ServerConfig::ConfValue(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, std::string &result, bool allow_linefeeds)
1692 {
1693         return ConfValue(target, tag, var, "", index, result, allow_linefeeds);
1694 }
1695
1696 bool ServerConfig::ConfValue(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index, std::string &result, bool allow_linefeeds)
1697 {
1698         ConfigDataHash::size_type pos = index;
1699         if (pos < target.count(tag))
1700         {
1701                 ConfigDataHash::iterator iter = target.find(tag);
1702
1703                 for(int i = 0; i < index; i++)
1704                         iter++;
1705
1706                 for(KeyValList::iterator j = iter->second.begin(); j != iter->second.end(); j++)
1707                 {
1708                         if(j->first == var)
1709                         {
1710                                 if ((!allow_linefeeds) && (j->second.find('\n') != std::string::npos))
1711                                 {
1712                                         ServerInstance->Logs->Log("CONFIG",DEFAULT, "Value of <" + tag + ":" + var+ "> contains a linefeed, and linefeeds in this value are not permitted -- stripped to spaces.");
1713                                         for (std::string::iterator n = j->second.begin(); n != j->second.end(); n++)
1714                                                 if (*n == '\n')
1715                                                         *n = ' ';
1716                                 }
1717                                 else
1718                                 {
1719                                         result = j->second;
1720                                         return true;
1721                                 }
1722                         }
1723                 }
1724                 if (!default_value.empty())
1725                 {
1726                         result = default_value;
1727                         return true;
1728                 }
1729         }
1730         else if (pos == 0)
1731         {
1732                 if (!default_value.empty())
1733                 {
1734                         result = default_value;
1735                         return true;
1736                 }
1737         }
1738         return false;
1739 }
1740
1741 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, int index, int &result)
1742 {
1743         return ConfValueInteger(target, std::string(tag), std::string(var), "", index, result);
1744 }
1745
1746 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, int &result)
1747 {
1748         return ConfValueInteger(target, std::string(tag), std::string(var), std::string(default_value), index, result);
1749 }
1750
1751 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, int &result)
1752 {
1753         return ConfValueInteger(target, tag, var, "", index, result);
1754 }
1755
1756 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index, int &result)
1757 {
1758         std::string value;
1759         std::istringstream stream;
1760         bool r = ConfValue(target, tag, var, default_value, index, value);
1761         stream.str(value);
1762         if(!(stream >> result))
1763                 return false;
1764         else
1765         {
1766                 if (!value.empty())
1767                 {
1768                         if (value.substr(0,2) == "0x")
1769                         {
1770                                 char* endptr;
1771
1772                                 value.erase(0,2);
1773                                 result = strtol(value.c_str(), &endptr, 16);
1774
1775                                 /* No digits found */
1776                                 if (endptr == value.c_str())
1777                                         return false;
1778                         }
1779                         else
1780                         {
1781                                 char denominator = *(value.end() - 1);
1782                                 switch (toupper(denominator))
1783                                 {
1784                                         case 'K':
1785                                                 /* Kilobytes -> bytes */
1786                                                 result = result * 1024;
1787                                         break;
1788                                         case 'M':
1789                                                 /* Megabytes -> bytes */
1790                                                 result = result * 1024 * 1024;
1791                                         break;
1792                                         case 'G':
1793                                                 /* Gigabytes -> bytes */
1794                                                 result = result * 1024 * 1024 * 1024;
1795                                         break;
1796                                 }
1797                         }
1798                 }
1799         }
1800         return r;
1801 }
1802
1803
1804 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, int index)
1805 {
1806         return ConfValueBool(target, std::string(tag), std::string(var), "", index);
1807 }
1808
1809 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index)
1810 {
1811         return ConfValueBool(target, std::string(tag), std::string(var), std::string(default_value), index);
1812 }
1813
1814 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, int index)
1815 {
1816         return ConfValueBool(target, tag, var, "", index);
1817 }
1818
1819 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index)
1820 {
1821         std::string result;
1822         if(!ConfValue(target, tag, var, default_value, index, result))
1823                 return false;
1824
1825         return ((result == "yes") || (result == "true") || (result == "1"));
1826 }
1827
1828 int ServerConfig::ConfValueEnum(ConfigDataHash &target, const char* tag)
1829 {
1830         return target.count(tag);
1831 }
1832
1833 int ServerConfig::ConfValueEnum(ConfigDataHash &target, const std::string &tag)
1834 {
1835         return target.count(tag);
1836 }
1837
1838 int ServerConfig::ConfVarEnum(ConfigDataHash &target, const char* tag, int index)
1839 {
1840         return ConfVarEnum(target, std::string(tag), index);
1841 }
1842
1843 int ServerConfig::ConfVarEnum(ConfigDataHash &target, const std::string &tag, int index)
1844 {
1845         ConfigDataHash::size_type pos = index;
1846
1847         if (pos < target.count(tag))
1848         {
1849                 ConfigDataHash::const_iterator iter = target.find(tag);
1850
1851                 for(int i = 0; i < index; i++)
1852                         iter++;
1853
1854                 return iter->second.size();
1855         }
1856
1857         return 0;
1858 }
1859
1860 /** Read the contents of a file located by `fname' into a file_cache pointed at by `F'.
1861  */
1862 bool ServerConfig::ReadFile(file_cache &F, const char* fname)
1863 {
1864         if (!fname || !*fname)
1865                 return false;
1866
1867         FILE* file = NULL;
1868         char linebuf[MAXBUF];
1869
1870         F.clear();
1871
1872         if ((*fname != '/') && (*fname != '\\'))
1873         {
1874                 std::string::size_type pos;
1875                 std::string confpath = ServerInstance->ConfigFileName;
1876                 std::string newfile = fname;
1877
1878                 if ((pos = confpath.rfind("/")) != std::string::npos)
1879                         newfile = confpath.substr(0, pos) + std::string("/") + fname;
1880                 else if ((pos = confpath.rfind("\\")) != std::string::npos)
1881                         newfile = confpath.substr(0, pos) + std::string("\\") + fname;
1882
1883                 if (!FileExists(newfile.c_str()))
1884                         return false;
1885                 file =  fopen(newfile.c_str(), "r");
1886         }
1887         else
1888         {
1889                 if (!FileExists(fname))
1890                         return false;
1891                 file =  fopen(fname, "r");
1892         }
1893
1894         if (file)
1895         {
1896                 while (!feof(file))
1897                 {
1898                         if (fgets(linebuf, sizeof(linebuf), file))
1899                                 linebuf[strlen(linebuf)-1] = 0;
1900                         else
1901                                 *linebuf = 0;
1902
1903                         if (!feof(file))
1904                         {
1905                                 F.push_back(*linebuf ? linebuf : " ");
1906                         }
1907                 }
1908
1909                 fclose(file);
1910         }
1911         else
1912                 return false;
1913
1914         return true;
1915 }
1916
1917 bool ServerConfig::FileExists(const char* file)
1918 {
1919         struct stat sb;
1920         if (stat(file, &sb) == -1)
1921                 return false;
1922
1923         if ((sb.st_mode & S_IFDIR) > 0)
1924                 return false;
1925
1926         FILE *input;
1927         if ((input = fopen (file, "r")) == NULL)
1928                 return false;
1929         else
1930         {
1931                 fclose(input);
1932                 return true;
1933         }
1934 }
1935
1936 char* ServerConfig::CleanFilename(char* name)
1937 {
1938         char* p = name + strlen(name);
1939         while ((p != name) && (*p != '/') && (*p != '\\')) p--;
1940         return (p != name ? ++p : p);
1941 }
1942
1943
1944 bool ServerConfig::DirValid(const char* dirandfile)
1945 {
1946 #ifdef WINDOWS
1947         return true;
1948 #endif
1949
1950         char work[1024];
1951         char buffer[1024];
1952         char otherdir[1024];
1953         int p;
1954
1955         strlcpy(work, dirandfile, 1024);
1956         p = strlen(work);
1957
1958         // we just want the dir
1959         while (*work)
1960         {
1961                 if (work[p] == '/')
1962                 {
1963                         work[p] = '\0';
1964                         break;
1965                 }
1966
1967                 work[p--] = '\0';
1968         }
1969
1970         // Get the current working directory
1971         if (getcwd(buffer, 1024 ) == NULL )
1972                 return false;
1973
1974         if (chdir(work) == -1)
1975                 return false;
1976
1977         if (getcwd(otherdir, 1024 ) == NULL )
1978                 return false;
1979
1980         if (chdir(buffer) == -1)
1981                 return false;
1982
1983         size_t t = strlen(work);
1984
1985         if (strlen(otherdir) >= t)
1986         {
1987                 otherdir[t] = '\0';
1988                 if (!strcmp(otherdir,work))
1989                 {
1990                         return true;
1991                 }
1992
1993                 return false;
1994         }
1995         else
1996         {
1997                 return false;
1998         }
1999 }
2000
2001 std::string ServerConfig::GetFullProgDir()
2002 {
2003         char buffer[PATH_MAX+1];
2004 #ifdef WINDOWS
2005         /* Windows has specific api calls to get the exe path that never fail.
2006          * For once, windows has something of use, compared to the POSIX code
2007          * for this, this is positively neato.
2008          */
2009         if (GetModuleFileName(NULL, buffer, MAX_PATH))
2010         {
2011                 std::string fullpath = buffer;
2012                 std::string::size_type n = fullpath.rfind("\\inspircd.exe");
2013                 return std::string(fullpath, 0, n);
2014         }
2015 #else
2016         // Get the current working directory
2017         if (getcwd(buffer, PATH_MAX))
2018         {
2019                 std::string remainder = this->argv[0];
2020
2021                 /* Does argv[0] start with /? its a full path, use it */
2022                 if (remainder[0] == '/')
2023                 {
2024                         std::string::size_type n = remainder.rfind("/inspircd");
2025                         return std::string(remainder, 0, n);
2026                 }
2027
2028                 std::string fullpath = std::string(buffer) + "/" + remainder;
2029                 std::string::size_type n = fullpath.rfind("/inspircd");
2030                 return std::string(fullpath, 0, n);
2031         }
2032 #endif
2033         return "/";
2034 }
2035
2036 InspIRCd* ServerConfig::GetInstance()
2037 {
2038         return ServerInstance;
2039 }
2040
2041 std::string ServerConfig::GetSID()
2042 {
2043         return sid;
2044 }
2045
2046 ValueItem::ValueItem(int value)
2047 {
2048         std::stringstream n;
2049         n << value;
2050         v = n.str();
2051 }
2052
2053 ValueItem::ValueItem(bool value)
2054 {
2055         std::stringstream n;
2056         n << value;
2057         v = n.str();
2058 }
2059
2060 ValueItem::ValueItem(const char* value)
2061 {
2062         v = value;
2063 }
2064
2065 void ValueItem::Set(const char* value)
2066 {
2067         v = value;
2068 }
2069
2070 void ValueItem::Set(int value)
2071 {
2072         std::stringstream n;
2073         n << value;
2074         v = n.str();
2075 }
2076
2077 int ValueItem::GetInteger()
2078 {
2079         if (v.empty())
2080                 return 0;
2081         return atoi(v.c_str());
2082 }
2083
2084 char* ValueItem::GetString()
2085 {
2086         return (char*)v.c_str();
2087 }
2088
2089 bool ValueItem::GetBool()
2090 {
2091         return (GetInteger() || v == "yes" || v == "true");
2092 }
2093
2094
2095
2096
2097 /*
2098  * XXX should this be in a class? -- w00t
2099  */
2100 bool InitTypes(ServerConfig* conf, const char*)
2101 {
2102         if (conf->opertypes.size())
2103         {
2104                 for (opertype_t::iterator n = conf->opertypes.begin(); n != conf->opertypes.end(); n++)
2105                 {
2106                         if (n->second)
2107                                 delete[] n->second;
2108                 }
2109         }
2110
2111         conf->opertypes.clear();
2112         return true;
2113 }
2114
2115 /*
2116  * XXX should this be in a class? -- w00t
2117  */
2118 bool InitClasses(ServerConfig* conf, const char*)
2119 {
2120         if (conf->operclass.size())
2121         {
2122                 for (operclass_t::iterator n = conf->operclass.begin(); n != conf->operclass.end(); n++)
2123                 {
2124                         if (n->second.commandlist)
2125                                 delete[] n->second.commandlist;
2126                         if (n->second.cmodelist)
2127                                 delete[] n->second.cmodelist;
2128                         if (n->second.umodelist)
2129                                 delete[] n->second.umodelist;
2130                 }
2131         }
2132
2133         conf->operclass.clear();
2134         return true;
2135 }
2136
2137 /*
2138  * XXX should this be in a class? -- w00t
2139  */
2140 bool DoType(ServerConfig* conf, const char*, char**, ValueList &values, int*)
2141 {
2142         const char* TypeName = values[0].GetString();
2143         const char* Classes = values[1].GetString();
2144
2145         conf->opertypes[TypeName] = strnewdup(Classes);
2146         return true;
2147 }
2148
2149 /*
2150  * XXX should this be in a class? -- w00t
2151  */
2152 bool DoClass(ServerConfig* conf, const char* tag, char**, ValueList &values, int*)
2153 {
2154         const char* ClassName = values[0].GetString();
2155         const char* CommandList = values[1].GetString();
2156         const char* UModeList = values[2].GetString();
2157         const char* CModeList = values[3].GetString();
2158
2159         for (const char* c = UModeList; *c; ++c)
2160         {
2161                 if ((*c < 'A' || *c > 'z') && *c != '*')
2162                 {
2163                         throw CoreException("Character " + std::string(1, *c) + " is not a valid mode in <class:usermodes>");
2164                 }
2165         }
2166         for (const char* c = CModeList; *c; ++c)
2167         {
2168                 if ((*c < 'A' || *c > 'z') && *c != '*')
2169                 {
2170                         throw CoreException("Character " + std::string(1, *c) + " is not a valid mode in <class:chanmodes>");
2171                 }
2172         }
2173
2174         conf->operclass[ClassName].commandlist = strnewdup(CommandList);
2175         conf->operclass[ClassName].umodelist = strnewdup(UModeList);
2176         conf->operclass[ClassName].cmodelist = strnewdup(CModeList);
2177         return true;
2178 }
2179
2180 /*
2181  * XXX should this be in a class? -- w00t
2182  */
2183 bool DoneClassesAndTypes(ServerConfig*, const char*)
2184 {
2185         return true;
2186 }
2187
2188
2189
2190 bool InitXLine(ServerConfig* conf, const char* tag)
2191 {
2192         return true;
2193 }
2194
2195 bool DoZLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
2196 {
2197         const char* reason = values[0].GetString();
2198         const char* ipmask = values[1].GetString();
2199
2200         ZLine* zl = new ZLine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, ipmask);
2201         if (!conf->GetInstance()->XLines->AddLine(zl, NULL))
2202                 delete zl;
2203
2204         return true;
2205 }
2206
2207 bool DoQLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
2208 {
2209         const char* reason = values[0].GetString();
2210         const char* nick = values[1].GetString();
2211
2212         QLine* ql = new QLine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, nick);
2213         if (!conf->GetInstance()->XLines->AddLine(ql, NULL))
2214                 delete ql;
2215
2216         return true;
2217 }
2218
2219 bool DoKLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
2220 {
2221         const char* reason = values[0].GetString();
2222         const char* host = values[1].GetString();
2223
2224         XLineManager* xlm = conf->GetInstance()->XLines;
2225
2226         IdentHostPair ih = xlm->IdentSplit(host);
2227
2228         KLine* kl = new KLine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, ih.first.c_str(), ih.second.c_str());
2229         if (!xlm->AddLine(kl, NULL))
2230                 delete kl;
2231         return true;
2232 }
2233
2234 bool DoELine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
2235 {
2236         const char* reason = values[0].GetString();
2237         const char* host = values[1].GetString();
2238
2239         XLineManager* xlm = conf->GetInstance()->XLines;
2240
2241         IdentHostPair ih = xlm->IdentSplit(host);
2242
2243         ELine* el = new ELine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, ih.first.c_str(), ih.second.c_str());
2244         if (!xlm->AddLine(el, NULL))
2245                 delete el;
2246         return true;
2247 }
2248
2249 // this should probably be moved to configreader, but atm it relies on CheckELines above.
2250 bool DoneELine(ServerConfig* conf, const char* tag)
2251 {
2252         for (std::vector<User*>::const_iterator u2 = conf->GetInstance()->Users->local_users.begin(); u2 != conf->GetInstance()->Users->local_users.end(); u2++)
2253         {
2254                 User* u = (User*)(*u2);
2255                 u->exempt = false;
2256         }
2257
2258         conf->GetInstance()->XLines->CheckELines();
2259         return true;
2260 }
2261
2262 void ConfigReaderThread::Run()
2263 {
2264         /* TODO: TheUser may be invalid by the time we get here! Check its validity, or pass a UID would be better */
2265         ServerInstance->Config->Read(do_bail, TheUser);
2266         ServerInstance->Threads->Mutex(true);
2267         this->SetExitFlag();
2268         ServerInstance->Threads->Mutex(false);
2269 }
2270