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                         ConnectClass* cc = new ConnectClass(name, timeout, flood, allow, pingfreq, password, hashtype, threshold, sendq, recvq, localmax, globalmax, maxchans);
 563                         cc->limit = limit;
 564                         cc->SetPort(port);
 565                         conf->Classes.push_back(cc);
 566                 }
 567                 else
 568                 {
 569                         ConnectClass* cc = new ConnectClass(name, deny);
 570                         cc->SetPort(port);
 571                         conf->Classes.push_back(cc);
 572                 }
 573         }
 574
 575         return true;
 576 }
 577
 578 /* Callback called when there are no more <connect> tags
 579  */
 580 bool DoneConnect(ServerConfig *conf, const char*)
 581 {
 582         conf->GetInstance()->Logs->Log("CONFIG",DEFAULT, "Done adding connect classes!");
 583         return true;
 584 }
 585
 586 /* Callback called before processing the first <uline> tag
 587  */
 588 bool InitULine(ServerConfig* conf, const char*)
 589 {
 590         conf->ulines.clear();
 591         return true;
 592 }
 593
 594 /* Callback called to process a single <uline> tag
 595  */
 596 bool DoULine(ServerConfig* conf, const char*, char**, ValueList &values, int*)
 597 {
 598         const char* server = values[0].GetString();
 599         const bool silent = values[1].GetBool();
 600         conf->ulines[server] = silent;
 601         return true;
 602 }
 603
 604 /* Callback called when there are no more <uline> tags
 605  */
 606 bool DoneULine(ServerConfig*, const char*)
 607 {
 608         return true;
 609 }
 610
 611 /* Callback called before processing the first <module> tag
 612  */
 613 bool InitModule(ServerConfig* conf, const char*)
 614 {
 615         old_module_names = conf->GetInstance()->Modules->GetAllModuleNames(0);
 616         new_module_names.clear();
 617         added_modules.clear();
 618         removed_modules.clear();
 619         return true;
 620 }
 621
 622 /* Callback called to process a single <module> tag
 623  */
 624 bool DoModule(ServerConfig*, const char*, char**, ValueList &values, int*)
 625 {
 626         const char* modname = values[0].GetString();
 627         new_module_names.push_back(modname);
 628         return true;
 629 }
 630
 631 /* Callback called when there are no more <module> tags
 632  */
 633 bool DoneModule(ServerConfig*, const char*)
 634 {
 635         // now create a list of new modules that are due to be loaded
 636         // and a seperate list of modules which are due to be unloaded
 637         for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
 638         {
 639                 bool added = true;
 640
 641                 for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
 642                 {
 643                         if (*old == *_new)
 644                                 added = false;
 645                 }
 646
 647                 if (added)
 648                         added_modules.push_back(*_new);
 649         }
 650
 651         for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
 652         {
 653                 bool removed = true;
 654                 for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
 655                 {
 656                         if (*newm == *oldm)
 657                                 removed = false;
 658                 }
 659
 660                 if (removed)
 661                         removed_modules.push_back(*oldm);
 662         }
 663         return true;
 664 }
 665
 666 /* Callback called before processing the first <banlist> tag
 667  */
 668 bool InitMaxBans(ServerConfig* conf, const char*)
 669 {
 670         conf->maxbans.clear();
 671         return true;
 672 }
 673
 674 /* Callback called to process a single <banlist> tag
 675  */
 676 bool DoMaxBans(ServerConfig* conf, const char*, char**, ValueList &values, int*)
 677 {
 678         const char* channel = values[0].GetString();
 679         int limit = values[1].GetInteger();
 680         conf->maxbans[channel] = limit;
 681         return true;
 682 }
 683
 684 /* Callback called when there are no more <banlist> tags.
 685  */
 686 bool DoneMaxBans(ServerConfig*, const char*)
 687 {
 688         return true;
 689 }
 690
 691 void ServerConfig::ReportConfigError(const std::string &errormessage, bool bail, User* user)
 692 {
 693         ServerInstance->Logs->Log("CONFIG",DEFAULT, "There were errors in your configuration file: %s", errormessage.c_str());
 694         if (bail)
 695         {
 696                 /* Unneeded because of the ServerInstance->Log() aboive? */
 697                 printf("There were errors in your configuration:\n%s\n\n",errormessage.c_str());
 698                 ServerInstance->Exit(EXIT_STATUS_CONFIG);
 699         }
 700         else
 701         {
 702                 std::string errors = errormessage;
 703                 std::string::size_type start;
 704                 unsigned int prefixlen;
 705                 start = 0;
 706                 /* ":ServerInstance->Config->ServerName NOTICE user->nick :" */
 707                 if (user)
 708                 {
 709                         prefixlen = strlen(this->ServerName) + strlen(user->nick) + 11;
 710                         user->WriteServ("NOTICE %s :There were errors in the configuration file:",user->nick);
 711                         while (start < errors.length())
 712                         {
 713                                 user->WriteServ("NOTICE %s :%s",user->nick, errors.substr(start, 510 - prefixlen).c_str());
 714                                 start += 510 - prefixlen;
 715                         }
 716                 }
 717                 else
 718                 {
 719                         ServerInstance->SNO->WriteToSnoMask('A', "There were errors in the configuration file:");
 720                         while (start < errors.length())
 721                         {
 722                                 ServerInstance->SNO->WriteToSnoMask('A', errors.substr(start, 360));
 723                                 start += 360;
 724                         }
 725                 }
 726                 return;
 727         }
 728 }
 729
 730 void ServerConfig::Read(bool bail, User* user)
 731 {
 732         int rem = 0, add = 0;      /* Number of modules added, number of modules removed */
 733
 734         static char maxkeep[MAXBUF];    /* Temporary buffer for WhoWasMaxKeep value */
 735         static char hidemodes[MAXBUF];  /* Modes to not allow listing from users below halfop */
 736         static char exemptchanops[MAXBUF];      /* Exempt channel ops from these modes */
 737         static char announceinvites[MAXBUF];    /* options:announceinvites setting */
 738         errstr.clear();
 739
 740         include_stack.clear();
 741
 742         /* These tags MUST occur and must ONLY occur once in the config file */
 743         static const char* Once[] = { "server", "admin", "files", "power", "options", NULL };
 744
 745         /* These tags can occur ONCE or not at all */
 746         InitialConfig Values[] = {
 747                 {"options",     "softlimit",    "0",                    new ValueContainerUInt (&this->SoftLimit),              DT_INTEGER,  ValidateSoftLimit},
 748                 {"options",     "somaxconn",    SOMAXCONN_S,            new ValueContainerInt  (&this->MaxConn),                DT_INTEGER,  ValidateMaxConn},
 749                 {"options",     "moronbanner",  "Youre banned!",        new ValueContainerChar (this->MoronBanner),             DT_CHARPTR,  NoValidation},
 750                 {"server",      "name",         "",                     new ValueContainerChar (this->ServerName),              DT_HOSTNAME|DT_BOOTONLY, ValidateServerName},
 751                 {"server",      "description",  "Configure Me",         new ValueContainerChar (this->ServerDesc),              DT_CHARPTR,  NoValidation},
 752                 {"server",      "network",      "Network",              new ValueContainerChar (this->Network),                 DT_NOSPACES, NoValidation},
 753                 {"server",      "id",           "",                     new ValueContainerChar (this->sid),                     DT_CHARPTR|DT_BOOTONLY,  ValidateSID},
 754                 {"admin",       "name",         "",                     new ValueContainerChar (this->AdminName),               DT_CHARPTR,  NoValidation},
 755                 {"admin",       "email",        "Mis@configu.red",      new ValueContainerChar (this->AdminEmail),              DT_CHARPTR,  NoValidation},
 756                 {"admin",       "nick",         "Misconfigured",        new ValueContainerChar (this->AdminNick),               DT_CHARPTR,  NoValidation},
 757                 {"files",       "motd",         "",                     new ValueContainerChar (this->motd),                    DT_CHARPTR,  ValidateMotd},
 758                 {"files",       "rules",        "",                     new ValueContainerChar (this->rules),                   DT_CHARPTR,  ValidateRules},
 759                 {"power",       "diepass",      "",                     new ValueContainerChar (this->diepass),                 DT_CHARPTR,  ValidateNotEmpty},
 760                 {"power",       "pause",        "",                     new ValueContainerInt  (&this->DieDelay),               DT_INTEGER,  NoValidation},
 761                 {"power",       "hash",         "",                     new ValueContainerChar (this->powerhash),               DT_CHARPTR,  NoValidation},
 762                 {"power",       "restartpass",  "",                     new ValueContainerChar (this->restartpass),             DT_CHARPTR,  ValidateNotEmpty},
 763                 {"options",     "prefixquit",   "",                     new ValueContainerChar (this->PrefixQuit),              DT_CHARPTR,  NoValidation},
 764                 {"options",     "suffixquit",   "",                     new ValueContainerChar (this->SuffixQuit),              DT_CHARPTR,  NoValidation},
 765                 {"options",     "fixedquit",    "",                     new ValueContainerChar (this->FixedQuit),               DT_CHARPTR,  NoValidation},
 766                 {"options",     "prefixpart",   "",                     new ValueContainerChar (this->PrefixPart),              DT_CHARPTR,  NoValidation},
 767                 {"options",     "suffixpart",   "",                     new ValueContainerChar (this->SuffixPart),              DT_CHARPTR,  NoValidation},
 768                 {"options",     "fixedpart",    "",                     new ValueContainerChar (this->FixedPart),               DT_CHARPTR,  NoValidation},
 769                 {"options",     "netbuffersize","10240",                new ValueContainerInt  (&this->NetBufferSize),          DT_INTEGER,  ValidateNetBufferSize},
 770                 {"options",     "maxwho",       "128",                  new ValueContainerInt  (&this->MaxWhoResults),          DT_INTEGER,  ValidateMaxWho},
 771                 {"options",     "allowhalfop",  "0",                    new ValueContainerBool (&this->AllowHalfop),            DT_BOOLEAN,  NoValidation},
 772                 {"dns",         "server",       "",                     new ValueContainerChar (this->DNSServer),               DT_IPADDRESS,DNSServerValidator},
 773                 {"dns",         "timeout",      "5",                    new ValueContainerInt  (&this->dns_timeout),            DT_INTEGER,  NoValidation},
 774                 {"options",     "moduledir",    MOD_PATH,               new ValueContainerChar (this->ModPath),                 DT_CHARPTR,  NoValidation},
 775                 {"disabled",    "commands",     "",                     new ValueContainerChar (this->DisabledCommands),        DT_CHARPTR,  NoValidation},
 776                 {"options",     "userstats",    "",                     new ValueContainerChar (this->UserStats),               DT_CHARPTR,  NoValidation},
 777                 {"options",     "customversion","",                     new ValueContainerChar (this->CustomVersion),           DT_CHARPTR,  NoValidation},
 778                 {"options",     "hidesplits",   "0",                    new ValueContainerBool (&this->HideSplits),             DT_BOOLEAN,  NoValidation},
 779                 {"options",     "hidebans",     "0",                    new ValueContainerBool (&this->HideBans),               DT_BOOLEAN,  NoValidation},
 780                 {"options",     "hidewhois",    "",                     new ValueContainerChar (this->HideWhoisServer),         DT_NOSPACES, NoValidation},
 781                 {"options",     "hidekills",    "",                     new ValueContainerChar (this->HideKillsServer),         DT_NOSPACES,  NoValidation},
 782                 {"options",     "operspywhois", "0",                    new ValueContainerBool (&this->OperSpyWhois),           DT_BOOLEAN,  NoValidation},
 783                 {"options",     "nouserdns",    "0",                    new ValueContainerBool (&this->NoUserDns),              DT_BOOLEAN,  NoValidation},
 784                 {"options",     "syntaxhints",  "0",                    new ValueContainerBool (&this->SyntaxHints),            DT_BOOLEAN,  NoValidation},
 785                 {"options",     "cyclehosts",   "0",                    new ValueContainerBool (&this->CycleHosts),             DT_BOOLEAN,  NoValidation},
 786                 {"options",     "ircumsgprefix","0",                    new ValueContainerBool (&this->UndernetMsgPrefix),      DT_BOOLEAN,  NoValidation},
 787                 {"options",     "announceinvites", "1",                 new ValueContainerChar (announceinvites),               DT_CHARPTR,  ValidateInvite},
 788                 {"options",     "hostintopic",  "1",                    new ValueContainerBool (&this->FullHostInTopic),        DT_BOOLEAN,  NoValidation},
 789                 {"options",     "hidemodes",    "",                     new ValueContainerChar (hidemodes),                     DT_CHARPTR,  ValidateModeLists},
 790                 {"options",     "exemptchanops","",                     new ValueContainerChar (exemptchanops),                 DT_CHARPTR,  ValidateExemptChanOps},
 791                 {"options",     "maxtargets",   "20",                   new ValueContainerUInt (&this->MaxTargets),             DT_INTEGER,  ValidateMaxTargets},
 792                 {"options",     "defaultmodes", "nt",                   new ValueContainerChar (this->DefaultModes),            DT_CHARPTR,  NoValidation},
 793                 {"pid",         "file",         "",                     new ValueContainerChar (this->PID),                     DT_CHARPTR,  NoValidation},
 794                 {"whowas",      "groupsize",    "10",                   new ValueContainerInt  (&this->WhoWasGroupSize),        DT_INTEGER,  NoValidation},
 795                 {"whowas",      "maxgroups",    "10240",                new ValueContainerInt  (&this->WhoWasMaxGroups),        DT_INTEGER,  NoValidation},
 796                 {"whowas",      "maxkeep",      "3600",                 new ValueContainerChar (maxkeep),                       DT_CHARPTR,  ValidateWhoWas},
 797                 {"die",         "value",        "",                     new ValueContainerChar (this->DieValue),                DT_CHARPTR,  NoValidation},
 798                 {"channels",    "users",        "20",                   new ValueContainerUInt (&this->MaxChans),               DT_INTEGER,  NoValidation},
 799                 {"channels",    "opers",        "60",                   new ValueContainerUInt (&this->OperMaxChans),           DT_INTEGER,  NoValidation},
 800                 {NULL,          NULL,           NULL,                   NULL,                                                   DT_NOTHING,  NoValidation}
 801         };
 802
 803         /* These tags can occur multiple times, and therefore they have special code to read them
 804          * which is different to the code for reading the singular tags listed above.
 805          */
 806         MultiConfig MultiValues[] = {
 807
 808                 {"connect",
 809                                 {"allow",       "deny",         "password",     "timeout",      "pingfreq",     "flood",
 810                                 "threshold",    "sendq",        "recvq",        "localmax",     "globalmax",    "port",
 811                                 "name",         "parent",       "maxchans",     "limit",        "hash",
 812                                 NULL},
 813                                 {"",            "",             "",             "",             "120",          "",
 814                                  "",            "",             "",             "3",            "3",            "0",
 815                                  "",            "",             "0",        "0",        "",
 816                                  NULL},
 817                                 {DT_IPADDRESS|DT_ALLOW_WILD,
 818                                                 DT_IPADDRESS|DT_ALLOW_WILD,
 819                                                                 DT_CHARPTR,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,
 820                                 DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,
 821                                 DT_NOSPACES,    DT_NOSPACES,    DT_INTEGER,     DT_INTEGER,     DT_CHARPTR},
 822                                 InitConnect, DoConnect, DoneConnect},
 823
 824                 {"uline",
 825                                 {"server",      "silent",       NULL},
 826                                 {"",            "0",            NULL},
 827                                 {DT_HOSTNAME,   DT_BOOLEAN},
 828                                 InitULine,DoULine,DoneULine},
 829
 830                 {"banlist",
 831                                 {"chan",        "limit",        NULL},
 832                                 {"",            "",             NULL},
 833                                 {DT_CHARPTR,    DT_INTEGER},
 834                                 InitMaxBans, DoMaxBans, DoneMaxBans},
 835
 836                 {"module",
 837                                 {"name",        NULL},
 838                                 {"",            NULL},
 839                                 {DT_CHARPTR},
 840                                 InitModule, DoModule, DoneModule},
 841
 842                 {"badip",
 843                                 {"reason",      "ipmask",       NULL},
 844                                 {"No reason",   "",             NULL},
 845                                 {DT_CHARPTR,    DT_IPADDRESS|DT_ALLOW_WILD},
 846                                 InitXLine, DoZLine, DoneConfItem},
 847
 848                 {"badnick",
 849                                 {"reason",      "nick",         NULL},
 850                                 {"No reason",   "",             NULL},
 851                                 {DT_CHARPTR,    DT_CHARPTR},
 852                                 InitXLine, DoQLine, DoneConfItem},
 853
 854                 {"badhost",
 855                                 {"reason",      "host",         NULL},
 856                                 {"No reason",   "",             NULL},
 857                                 {DT_CHARPTR,    DT_CHARPTR},
 858                                 InitXLine, DoKLine, DoneConfItem},
 859
 860                 {"exception",
 861                                 {"reason",      "host",         NULL},
 862                                 {"No reason",   "",             NULL},
 863                                 {DT_CHARPTR,    DT_CHARPTR},
 864                                 InitXLine, DoELine, DoneELine},
 865
 866                 {"type",
 867                                 {"name",        "classes",      NULL},
 868                                 {"",            "",             NULL},
 869                                 {DT_NOSPACES,   DT_CHARPTR},
 870                                 InitTypes, DoType, DoneClassesAndTypes},
 871
 872                 {"class",
 873                                 {"name",        "commands",     "usermodes",    "chanmodes",    NULL},
 874                                 {"",            "",             "",             "",             NULL},
 875                                 {DT_NOSPACES,   DT_CHARPTR,     DT_CHARPTR,     DT_CHARPTR},
 876                                 InitClasses, DoClass, DoneClassesAndTypes},
 877
 878                 {NULL,
 879                                 {NULL},
 880                                 {NULL},
 881                                 {0},
 882                                 NULL, NULL, NULL}
 883         };
 884
 885         /* Load and parse the config file, if there are any errors then explode */
 886
 887         /* Make a copy here so if it fails then we can carry on running with an unaffected config */
 888         newconfig.clear();
 889
 890         if (!this->DoInclude(newconfig, ServerInstance->ConfigFileName, errstr))
 891         {
 892                 ReportConfigError(errstr.str(), bail, user);
 893                 return;
 894         }
 895
 896         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 897         try
 898         {
 899                 /* Check we dont have more than one of singular tags, or any of them missing
 900                  */
 901                 for (int Index = 0; Once[Index]; Index++)
 902                         if (!CheckOnce(Once[Index], newconfig))
 903                                 return;
 904
 905                 /* Read the values of all the tags which occur once or not at all, and call their callbacks.
 906                  */
 907                 for (int Index = 0; Values[Index].tag; Index++)
 908                 {
 909                         char item[MAXBUF];
 910                         int dt = Values[Index].datatype;
 911                         bool allow_newlines = ((dt & DT_ALLOW_NEWLINE) > 0);
 912                         bool allow_wild = ((dt & DT_ALLOW_WILD) > 0);
 913                         bool bootonly = ((dt & DT_BOOTONLY) > 0);
 914                         dt &= ~DT_ALLOW_NEWLINE;
 915                         dt &= ~DT_ALLOW_WILD;
 916                         dt &= ~DT_BOOTONLY;
 917
 918                         /* Silently ignore boot only values */
 919                         if (bootonly && !bail)
 920                                 continue;
 921
 922                         ConfValue(newconfig, Values[Index].tag, Values[Index].value, Values[Index].default_value, 0, item, MAXBUF, allow_newlines);
 923                         ValueItem vi(item);
 924
 925                         if (!Values[Index].validation_function(this, Values[Index].tag, Values[Index].value, vi))
 926                                 throw CoreException("One or more values in your configuration file failed to validate. Please see your ircd.log for more information.");
 927
 928                         ServerInstance->Threads->Mutex(true);
 929                         switch (dt)
 930                         {
 931                                 case DT_NOSPACES:
 932                                 {
 933                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 934                                         this->ValidateNoSpaces(vi.GetString(), Values[Index].tag, Values[Index].value);
 935                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 936                                 }
 937                                 break;
 938                                 case DT_HOSTNAME:
 939                                 {
 940                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 941                                         this->ValidateHostname(vi.GetString(), Values[Index].tag, Values[Index].value);
 942                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 943                                         ServerInstance->Logs->Log("CONFIG",DEFAULT,"Got %s", vi.GetString());
 944                                 }
 945                                 break;
 946                                 case DT_IPADDRESS:
 947                                 {
 948                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 949                                         this->ValidateIP(vi.GetString(), Values[Index].tag, Values[Index].value, allow_wild);
 950                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 951                                 }
 952                                 break;
 953                                 case DT_CHANNEL:
 954                                 {
 955                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 956                                         if (*(vi.GetString()) && !ServerInstance->IsChannel(vi.GetString()))
 957                                         {
 958                                                 ServerInstance->Threads->Mutex(false);
 959                                                 throw CoreException("The value of <"+std::string(Values[Index].tag)+":"+Values[Index].value+"> is not a valid channel name");
 960                                         }
 961                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 962                                 }
 963                                 break;
 964                                 case DT_CHARPTR:
 965                                 {
 966                                         ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val;
 967                                         /* Make sure we also copy the null terminator */
 968                                         vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1);
 969                                 }
 970                                 break;
 971                                 case DT_INTEGER:
 972                                 {
 973                                         int val = vi.GetInteger();
 974                                         ValueContainerInt* vci = (ValueContainerInt*)Values[Index].val;
 975                                         vci->Set(&val, sizeof(int));
 976                                 }
 977                                 break;
 978                                 case DT_BOOLEAN:
 979                                 {
 980                                         bool val = vi.GetBool();
 981                                         ValueContainerBool* vcb = (ValueContainerBool*)Values[Index].val;
 982                                         vcb->Set(&val, sizeof(bool));
 983                                 }
 984                                 break;
 985                                 default:
 986                                         /* You don't want to know what happens if someones bad code sends us here. */
 987                                 break;
 988                         }
 989                         /* We're done with this now */
 990                         delete Values[Index].val;
 991                         ServerInstance->Threads->Mutex(false);
 992                 }
 993
 994                 /* Read the multiple-tag items (class tags, connect tags, etc)
 995                  * and call the callbacks associated with them. We have three
 996                  * callbacks for these, a 'start', 'item' and 'end' callback.
 997                  */
 998                 for (int Index = 0; MultiValues[Index].tag; Index++)
 999                 {
1000                         ServerInstance->Threads->Mutex(true);
1001                         MultiValues[Index].init_function(this, MultiValues[Index].tag);
1002                         ServerInstance->Threads->Mutex(false);
1003
1004                         int number_of_tags = ConfValueEnum(newconfig, MultiValues[Index].tag);
1005
1006                         for (int tagnum = 0; tagnum < number_of_tags; tagnum++)
1007                         {
1008                                 ValueList vl;
1009                                 for (int valuenum = 0; MultiValues[Index].items[valuenum]; valuenum++)
1010                                 {
1011                                         int dt = MultiValues[Index].datatype[valuenum];
1012                                         bool allow_newlines =  ((dt & DT_ALLOW_NEWLINE) > 0);
1013                                         bool allow_wild = ((dt & DT_ALLOW_WILD) > 0);
1014                                         dt &= ~DT_ALLOW_NEWLINE;
1015                                         dt &= ~DT_ALLOW_WILD;
1016
1017                                         ServerInstance->Threads->Mutex(true);
1018                                         /* We catch and rethrow any exception here just so we can free our mutex
1019                                          */
1020                                         try
1021                                         {
1022                                                 switch (dt)
1023                                                 {
1024                                                         case DT_NOSPACES:
1025                                                         {
1026                                                                 char item[MAXBUF];
1027                                                                 if (ConfValue(newconfig, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1028                                                                         vl.push_back(ValueItem(item));
1029                                                                 else
1030                                                                         vl.push_back(ValueItem(""));
1031                                                                 this->ValidateNoSpaces(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum]);
1032                                                         }
1033                                                         break;
1034                                                         case DT_HOSTNAME:
1035                                                         {
1036                                                                 char item[MAXBUF];
1037                                                                 if (ConfValue(newconfig, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1038                                                                         vl.push_back(ValueItem(item));
1039                                                                 else
1040                                                                         vl.push_back(ValueItem(""));
1041                                                                 this->ValidateHostname(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum]);
1042                                                         }
1043                                                         break;
1044                                                         case DT_IPADDRESS:
1045                                                         {
1046                                                                 char item[MAXBUF];
1047                                                                 if (ConfValue(newconfig, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1048                                                                         vl.push_back(ValueItem(item));
1049                                                                 else
1050                                                                         vl.push_back(ValueItem(""));
1051                                                                 this->ValidateIP(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum], allow_wild);
1052                                                         }
1053                                                         break;
1054                                                         case DT_CHANNEL:
1055                                                         {
1056                                                                 char item[MAXBUF];
1057                                                                 if (ConfValue(newconfig, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1058                                                                         vl.push_back(ValueItem(item));
1059                                                                 else
1060                                                                         vl.push_back(ValueItem(""));
1061                                                                 if (!ServerInstance->IsChannel(vl[vl.size()-1].GetString()))
1062                                                                         throw CoreException("The value of <"+std::string(MultiValues[Index].tag)+":"+MultiValues[Index].items[valuenum]+"> number "+ConvToStr(tagnum + 1)+" is not a valid channel name");
1063                                                         }
1064                                                         break;
1065                                                         case DT_CHARPTR:
1066                                                         {
1067                                                                 char item[MAXBUF];
1068                                                                 if (ConfValue(newconfig, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines))
1069                                                                         vl.push_back(ValueItem(item));
1070                                                                 else
1071                                                                         vl.push_back(ValueItem(""));
1072                                                         }
1073                                                         break;
1074                                                         case DT_INTEGER:
1075                                                         {
1076                                                                 int item = 0;
1077                                                                 if (ConfValueInteger(newconfig, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item))
1078                                                                         vl.push_back(ValueItem(item));
1079                                                                 else
1080                                                                         vl.push_back(ValueItem(0));
1081                                                         }
1082                                                         break;
1083                                                         case DT_BOOLEAN:
1084                                                         {
1085                                                                 bool item = ConfValueBool(newconfig, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum);
1086                                                                 vl.push_back(ValueItem(item));
1087                                                         }
1088                                                         break;
1089                                                         default:
1090                                                                 /* Someone was smoking craq if we got here, and we're all gonna die. */
1091                                                         break;
1092                                                 }
1093                                         }
1094                                         catch (CoreException &e)
1095                                         {
1096                                                 ServerInstance->Threads->Mutex(false);
1097                                                 throw e;
1098                                         }
1099                                         ServerInstance->Threads->Mutex(false);
1100                                 }
1101                                 MultiValues[Index].validation_function(this, MultiValues[Index].tag, (char**)MultiValues[Index].items, vl, MultiValues[Index].datatype);
1102                         }
1103                         MultiValues[Index].finish_function(this, MultiValues[Index].tag);
1104                 }
1105
1106         }
1107
1108         catch (CoreException &ce)
1109         {
1110                 ReportConfigError(ce.GetReason(), bail, user);
1111                 return;
1112         }
1113
1114         ServerInstance->Threads->Mutex(true);
1115         for (int i = 0; i < ConfValueEnum(newconfig, "type"); ++i)
1116         {
1117                 char item[MAXBUF], classn[MAXBUF], classes[MAXBUF];
1118                 std::string classname;
1119                 ConfValue(newconfig, "type", "classes", "", i, classes, MAXBUF, false);
1120                 irc::spacesepstream str(classes);
1121                 ConfValue(newconfig, "type", "name", "", i, item, MAXBUF, false);
1122                 while (str.GetToken(classname))
1123                 {
1124                         std::string lost;
1125                         bool foundclass = false;
1126                         for (int j = 0; j < ConfValueEnum(newconfig, "class"); ++j)
1127                         {
1128                                 ConfValue(newconfig, "class", "name", "", j, classn, MAXBUF, false);
1129                                 if (!strcmp(classn, classname.c_str()))
1130                                 {
1131                                         foundclass = true;
1132                                         break;
1133                                 }
1134                         }
1135                         if (!foundclass)
1136                         {
1137                                 if (user)
1138                                         user->WriteServ("NOTICE %s :*** Warning: Oper type '%s' has a missing class named '%s', this does nothing!", user->nick, item, classname.c_str());
1139                                 else
1140                                 {
1141                                         if (bail)
1142                                                 printf("Warning: Oper type '%s' has a missing class named '%s', this does nothing!\n", item, classname.c_str());
1143                                         else
1144                                                 ServerInstance->SNO->WriteToSnoMask('A', "Warning: Oper type '%s' has a missing class named '%s', this does nothing!", item, classname.c_str());
1145                                 }
1146                         }
1147                 }
1148         }
1149
1150         /* If we succeeded, set the ircd config to the new one */
1151         this->config_data = newconfig;
1152
1153         ServerInstance->Threads->Mutex(false);
1154
1155         // write once here, to try it out and make sure its ok
1156         ServerInstance->WritePID(this->PID);
1157
1158         /* Switch over logfiles */
1159         ServerInstance->Logs->CloseLogs();
1160         ServerInstance->Logs->OpenFileLogs();
1161
1162         ServerInstance->Logs->Log("CONFIG", DEFAULT, "Done reading configuration file.");
1163
1164         /* If we're rehashing, let's load any new modules, and unload old ones
1165          */
1166         if (!bail)
1167         {
1168                 int found_ports = 0;
1169                 FailedPortList pl;
1170                 ServerInstance->BindPorts(false, found_ports, pl);
1171
1172                 if (pl.size() && user)
1173                 {
1174                         ServerInstance->Threads->Mutex(true);
1175                         user->WriteServ("NOTICE %s :*** Not all your client ports could be bound.", user->nick);
1176                         user->WriteServ("NOTICE %s :*** The following port(s) failed to bind:", user->nick);
1177                         int j = 1;
1178                         for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
1179                         {
1180                                 user->WriteServ("NOTICE %s :*** %d.   IP: %s     Port: %lu", user->nick, j, i->first.empty() ? "<all>" : i->first.c_str(), (unsigned long)i->second);
1181                         }
1182                         ServerInstance->Threads->Mutex(false);
1183                 }
1184
1185                 ServerInstance->Threads->Mutex(true);
1186                 if (!removed_modules.empty())
1187                 {
1188                         for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
1189                         {
1190                                 if (ServerInstance->Modules->Unload(removing->c_str()))
1191                                 {
1192                                         ServerInstance->SNO->WriteToSnoMask('A', "*** REHASH UNLOADED MODULE: %s",removing->c_str());
1193
1194                                         if (user)
1195                                                 user->WriteNumeric(973, "%s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
1196
1197                                         rem++;
1198                                 }
1199                                 else
1200                                 {
1201                                         if (user)
1202                                                 user->WriteNumeric(972, "%s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ServerInstance->Modules->LastError().c_str());
1203                                 }
1204                         }
1205                 }
1206
1207                 if (!added_modules.empty())
1208                 {
1209                         for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
1210                         {
1211                                 if (ServerInstance->Modules->Load(adding->c_str()))
1212                                 {
1213                                         ServerInstance->SNO->WriteToSnoMask('A', "*** REHASH LOADED MODULE: %s",adding->c_str());
1214
1215                                         if (user)
1216                                                 user->WriteNumeric(975, "%s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
1217
1218                                         add++;
1219                                 }
1220                                 else
1221                                 {
1222                                         if (user)
1223                                                 user->WriteNumeric(974, "%s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ServerInstance->Modules->LastError().c_str());
1224                                 }
1225                         }
1226                 }
1227
1228                 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());
1229
1230                 ServerInstance->Threads->Mutex(false);
1231
1232         }
1233
1234         /** Note: This is safe, the method checks for user == NULL */
1235         ServerInstance->Threads->Mutex(true);
1236         ServerInstance->Parser->SetupCommandTable(user);
1237         ServerInstance->Threads->Mutex(false);
1238
1239         if (user)
1240                 user->WriteServ("NOTICE %s :*** Successfully rehashed server.", user->nick);
1241         else
1242                 ServerInstance->SNO->WriteToSnoMask('A', "*** Successfully rehashed server.");
1243
1244 }
1245
1246
1247 bool ServerConfig::LoadConf(ConfigDataHash &target, FILE* &conf, const char* filename, std::ostringstream &errorstream)
1248 {
1249         std::string line;
1250         char ch;
1251         long linenumber;
1252         bool in_tag;
1253         bool in_quote;
1254         bool in_comment;
1255         int character_count = 0;
1256
1257         linenumber = 1;
1258         in_tag = false;
1259         in_quote = false;
1260         in_comment = false;
1261
1262         ServerInstance->Logs->Log("CONFIG", DEBUG, "Reading %s", filename);
1263
1264         /* Check if the file open failed first */
1265         if (!conf)
1266         {
1267                 errorstream << "LoadConf: Couldn't open config file: " << filename << std::endl;
1268                 return false;
1269         }
1270
1271         for (unsigned int t = 0; t < include_stack.size(); t++)
1272         {
1273                 if (std::string(filename) == include_stack[t])
1274                 {
1275                         errorstream << "File " << filename << " is included recursively (looped inclusion)." << std::endl;
1276                         return false;
1277                 }
1278         }
1279
1280         /* It's not already included, add it to the list of files we've loaded */
1281         include_stack.push_back(filename);
1282
1283         /* Start reading characters... */
1284         while (!feof(conf))
1285         {
1286                 ch = fgetc(conf);
1287                 /*
1288                  * Fix for moronic windows issue spotted by Adremelech.
1289                  * Some windows editors save text files as utf-16, which is
1290                  * a total pain in the ass to parse. Users should save in the
1291                  * right config format! If we ever see a file where the first
1292                  * byte is 0xFF or 0xFE, or the second is 0xFF or 0xFE, then
1293                  * this is most likely a utf-16 file. Bail out and insult user.
1294                  */
1295                 if ((character_count++ < 2) && (ch == '\xFF' || ch == '\xFE'))
1296                 {
1297                         errorstream << "File " << filename << " cannot be read, as it is encoded in braindead UTF-16. Save your file as plain ASCII!" << std::endl;
1298                         return false;
1299                 }
1300
1301                 /*
1302                  * Here we try and get individual tags on separate lines,
1303                  * this would be so easy if we just made people format
1304                  * their config files like that, but they don't so...
1305                  * We check for a '<' and then know the line is over when
1306                  * we get a '>' not inside quotes. If we find two '<' and
1307                  * no '>' then die with an error.
1308                  */
1309
1310                 if ((ch == '#') && !in_quote)
1311                         in_comment = true;
1312
1313                 switch (ch)
1314                 {
1315                         case '\n':
1316                                 if (in_quote)
1317                                         line += '\n';
1318                                 linenumber++;
1319                         case '\r':
1320                                 if (!in_quote)
1321                                         in_comment = false;
1322                         case '\0':
1323                                 continue;
1324                         case '\t':
1325                                 ch = ' ';
1326                 }
1327
1328                 if(in_comment)
1329                         continue;
1330
1331                 /* XXX: Added by Brain, May 1st 2006 - Escaping of characters.
1332                  * Note that this WILL NOT usually allow insertion of newlines,
1333                  * because a newline is two characters long. Use it primarily to
1334                  * insert the " symbol.
1335                  *
1336                  * Note that this also involves a further check when parsing the line,
1337                  * which can be found below.
1338                  */
1339                 if ((ch == '\\') && (in_quote) && (in_tag))
1340                 {
1341                         line += ch;
1342                         char real_character;
1343                         if (!feof(conf))
1344                         {
1345                                 real_character = fgetc(conf);
1346                                 if (real_character == 'n')
1347                                         real_character = '\n';
1348                                 line += real_character;
1349                                 continue;
1350                         }
1351                         else
1352                         {
1353                                 errorstream << "End of file after a \\, what did you want to escape?: " << filename << ":" << linenumber << std::endl;
1354                                 return false;
1355                         }
1356                 }
1357
1358                 if (ch != '\r')
1359                         line += ch;
1360
1361                 if (ch == '<')
1362                 {
1363                         if (in_tag)
1364                         {
1365                                 if (!in_quote)
1366                                 {
1367                                         errorstream << "Got another opening < when the first one wasn't closed: " << filename << ":" << linenumber << std::endl;
1368                                         return false;
1369                                 }
1370                         }
1371                         else
1372                         {
1373                                 if (in_quote)
1374                                 {
1375                                         errorstream << "We're in a quote but outside a tag, interesting. " << filename << ":" << linenumber << std::endl;
1376                                         return false;
1377                                 }
1378                                 else
1379                                 {
1380                                         // errorstream << "Opening new config tag on line " << linenumber << std::endl;
1381                                         in_tag = true;
1382                                 }
1383                         }
1384                 }
1385                 else if (ch == '"')
1386                 {
1387                         if (in_tag)
1388                         {
1389                                 if (in_quote)
1390                                 {
1391                                         // errorstream << "Closing quote in config tag on line " << linenumber << std::endl;
1392                                         in_quote = false;
1393                                 }
1394                                 else
1395                                 {
1396                                         // errorstream << "Opening quote in config tag on line " << linenumber << std::endl;
1397                                         in_quote = true;
1398                                 }
1399                         }
1400                         else
1401                         {
1402                                 if (in_quote)
1403                                 {
1404                                         errorstream << "Found a (closing) \" outside a tag: " << filename << ":" << linenumber << std::endl;
1405                                 }
1406                                 else
1407                                 {
1408                                         errorstream << "Found a (opening) \" outside a tag: " << filename << ":" << linenumber << std::endl;
1409                                 }
1410                         }
1411                 }
1412                 else if (ch == '>')
1413                 {
1414                         {
1415                                 if (in_tag)
1416                                 {
1417                                         // errorstream << "Closing config tag on line " << linenumber << std::endl;
1418                                         in_tag = false;
1419
1420                                         /*
1421                                          * If this finds an <include> then ParseLine can simply call
1422                                          * LoadConf() and load the included config into the same ConfigDataHash
1423                                          */
1424
1425                                         if (!this->ParseLine(target, line, linenumber, errorstream))
1426                                                 return false;
1427
1428                                         line.clear();
1429                                 }
1430                                 else
1431                                 {
1432                                         errorstream << "Got a closing > when we weren't inside a tag: " << filename << ":" << linenumber << std::endl;
1433                                         return false;
1434                                 }
1435                         }
1436                 }
1437         }
1438
1439         /* 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 */
1440         if (in_comment || in_quote)
1441         {
1442                 errorstream << "Reached end of file whilst still inside a quoted section or tag. This is most likely an error or there \
1443                         is a newline missing from the end of the file: " << filename << ":" << linenumber << std::endl;
1444         }
1445
1446         return true;
1447 }
1448
1449
1450 bool ServerConfig::LoadConf(ConfigDataHash &target, FILE* &conf, const std::string &filename, std::ostringstream &errorstream)
1451 {
1452         return this->LoadConf(target, conf, filename.c_str(), errorstream);
1453 }
1454
1455 bool ServerConfig::ParseLine(ConfigDataHash &target, std::string &line, long &linenumber, std::ostringstream &errorstream)
1456 {
1457         std::string tagname;
1458         std::string current_key;
1459         std::string current_value;
1460         KeyValList results;
1461         bool got_name;
1462         bool got_key;
1463         bool in_quote;
1464
1465         got_name = got_key = in_quote = false;
1466
1467         for(std::string::iterator c = line.begin(); c != line.end(); c++)
1468         {
1469                 if (!got_name)
1470                 {
1471                         /* We don't know the tag name yet. */
1472
1473                         if (*c != ' ')
1474                         {
1475                                 if (*c != '<')
1476                                 {
1477                                         tagname += *c;
1478                                 }
1479                         }
1480                         else
1481                         {
1482                                 /* We got to a space, we should have the tagname now. */
1483                                 if(tagname.length())
1484                                 {
1485                                         got_name = true;
1486                                 }
1487                         }
1488                 }
1489                 else
1490                 {
1491                         /* We have the tag name */
1492                         if (!got_key)
1493                         {
1494                                 /* We're still reading the key name */
1495                                 if (*c != '=')
1496                                 {
1497                                         if (*c != ' ')
1498                                         {
1499                                                 current_key += *c;
1500                                         }
1501                                 }
1502                                 else
1503                                 {
1504                                         /* We got an '=', end of the key name. */
1505                                         got_key = true;
1506                                 }
1507                         }
1508                         else
1509                         {
1510                                 /* We have the key name, now we're looking for quotes and the value */
1511
1512                                 /* Correctly handle escaped characters here.
1513                                  * See the XXX'ed section above.
1514                                  */
1515                                 if ((*c == '\\') && (in_quote))
1516                                 {
1517                                         c++;
1518                                         if (*c == 'n')
1519                                                 current_value += '\n';
1520                                         else
1521                                                 current_value += *c;
1522                                         continue;
1523                                 }
1524                                 else if ((*c == '\n') && (in_quote))
1525                                 {
1526                                         /* Got a 'real' \n, treat it as part of the value */
1527                                         current_value += '\n';
1528                                         linenumber++;
1529                                         continue;
1530                                 }
1531                                 else if ((*c == '\r') && (in_quote))
1532                                         /* Got a \r, drop it */
1533                                         continue;
1534
1535                                 if (*c == '"')
1536                                 {
1537                                         if (!in_quote)
1538                                         {
1539                                                 /* We're not already in a quote. */
1540                                                 in_quote = true;
1541                                         }
1542                                         else
1543                                         {
1544                                                 /* Leaving the quotes, we have the current value */
1545                                                 results.push_back(KeyVal(current_key, current_value));
1546
1547                                                 // std::cout << "<" << tagname << ":" << current_key << "> " << current_value << std::endl;
1548
1549                                                 in_quote = false;
1550                                                 got_key = false;
1551
1552                                                 if ((tagname == "include") && (current_key == "file"))
1553                                                 {
1554                                                         if (!this->DoInclude(target, current_value, errorstream))
1555                                                                 return false;
1556                                                 }
1557                                                 else if ((tagname == "include") && (current_key == "executable"))
1558                                                 {
1559                                                         /* Pipe an executable and use its stdout as config data */
1560                                                         if (!this->DoPipe(target, current_value, errorstream))
1561                                                                 return false;
1562                                                 }
1563
1564                                                 current_key.clear();
1565                                                 current_value.clear();
1566                                         }
1567                                 }
1568                                 else
1569                                 {
1570                                         if (in_quote)
1571                                         {
1572                                                 current_value += *c;
1573                                         }
1574                                 }
1575                         }
1576                 }
1577         }
1578
1579         /* Finished parsing the tag, add it to the config hash */
1580         target.insert(std::pair<std::string, KeyValList > (tagname, results));
1581
1582         return true;
1583 }
1584
1585 bool ServerConfig::DoPipe(ConfigDataHash &target, const std::string &file, std::ostringstream &errorstream)
1586 {
1587         FILE* conf = popen(file.c_str(), "r");
1588         bool ret = false;
1589
1590         if (conf)
1591         {
1592                 ret = LoadConf(target, conf, file.c_str(), errorstream);
1593                 pclose(conf);
1594         }
1595         else
1596                 errorstream << "Couldn't execute: " << file << std::endl;
1597
1598         return ret;
1599 }
1600
1601 bool ServerConfig::DoInclude(ConfigDataHash &target, const std::string &file, std::ostringstream &errorstream)
1602 {
1603         std::string confpath;
1604         std::string newfile;
1605         std::string::size_type pos;
1606
1607         confpath = ServerInstance->ConfigFileName;
1608         newfile = file;
1609
1610         std::replace(newfile.begin(),newfile.end(),'\\','/');
1611         std::replace(confpath.begin(),confpath.end(),'\\','/');
1612
1613         if ((newfile[0] != '/') && (newfile.find("://") == std::string::npos))
1614         {
1615                 if((pos = confpath.rfind("/")) != std::string::npos)
1616                 {
1617                         /* Leaves us with just the path */
1618                         newfile = confpath.substr(0, pos) + std::string("/") + newfile;
1619                 }
1620                 else
1621                 {
1622                         errorstream << "Couldn't get config path from: " << ServerInstance->ConfigFileName << std::endl;
1623                         return false;
1624                 }
1625         }
1626
1627         FILE* conf = fopen(newfile.c_str(), "r");
1628         bool ret = false;
1629
1630         if (conf)
1631         {
1632                 ret = LoadConf(target, conf, newfile, errorstream);
1633                 fclose(conf);
1634         }
1635         else
1636                 errorstream << "Couldn't open config file: " << file << std::endl;
1637
1638         return ret;
1639 }
1640
1641 bool ServerConfig::ConfValue(ConfigDataHash &target, const char* tag, const char* var, int index, char* result, int length, bool allow_linefeeds)
1642 {
1643         return ConfValue(target, tag, var, "", index, result, length, allow_linefeeds);
1644 }
1645
1646 bool ServerConfig::ConfValue(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, char* result, int length, bool allow_linefeeds)
1647 {
1648         std::string value;
1649         bool r = ConfValue(target, std::string(tag), std::string(var), std::string(default_value), index, value, allow_linefeeds);
1650         strlcpy(result, value.c_str(), length);
1651         return r;
1652 }
1653
1654 bool ServerConfig::ConfValue(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, std::string &result, bool allow_linefeeds)
1655 {
1656         return ConfValue(target, tag, var, "", index, result, allow_linefeeds);
1657 }
1658
1659 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)
1660 {
1661         ConfigDataHash::size_type pos = index;
1662         if (pos < target.count(tag))
1663         {
1664                 ConfigDataHash::iterator iter = target.find(tag);
1665
1666                 for(int i = 0; i < index; i++)
1667                         iter++;
1668
1669                 for(KeyValList::iterator j = iter->second.begin(); j != iter->second.end(); j++)
1670                 {
1671                         if(j->first == var)
1672                         {
1673                                 if ((!allow_linefeeds) && (j->second.find('\n') != std::string::npos))
1674                                 {
1675                                         ServerInstance->Logs->Log("CONFIG",DEFAULT, "Value of <" + tag + ":" + var+ "> contains a linefeed, and linefeeds in this value are not permitted -- stripped to spaces.");
1676                                         for (std::string::iterator n = j->second.begin(); n != j->second.end(); n++)
1677                                                 if (*n == '\n')
1678                                                         *n = ' ';
1679                                 }
1680                                 else
1681                                 {
1682                                         result = j->second;
1683                                         return true;
1684                                 }
1685                         }
1686                 }
1687                 if (!default_value.empty())
1688                 {
1689                         result = default_value;
1690                         return true;
1691                 }
1692         }
1693         else if(pos == 0)
1694         {
1695                 if (!default_value.empty())
1696                 {
1697                         result = default_value;
1698                         return true;
1699                 }
1700         }
1701         return false;
1702 }
1703
1704 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, int index, int &result)
1705 {
1706         return ConfValueInteger(target, std::string(tag), std::string(var), "", index, result);
1707 }
1708
1709 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, int &result)
1710 {
1711         return ConfValueInteger(target, std::string(tag), std::string(var), std::string(default_value), index, result);
1712 }
1713
1714 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, int &result)
1715 {
1716         return ConfValueInteger(target, tag, var, "", index, result);
1717 }
1718
1719 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index, int &result)
1720 {
1721         std::string value;
1722         std::istringstream stream;
1723         bool r = ConfValue(target, tag, var, default_value, index, value);
1724         stream.str(value);
1725         if(!(stream >> result))
1726                 return false;
1727         else
1728         {
1729                 if (!value.empty())
1730                 {
1731                         if (value.substr(0,2) == "0x")
1732                         {
1733                                 char* endptr;
1734
1735                                 value.erase(0,2);
1736                                 result = strtol(value.c_str(), &endptr, 16);
1737
1738                                 /* No digits found */
1739                                 if (endptr == value.c_str())
1740                                         return false;
1741                         }
1742                         else
1743                         {
1744                                 char denominator = *(value.end() - 1);
1745                                 switch (toupper(denominator))
1746                                 {
1747                                         case 'K':
1748                                                 /* Kilobytes -> bytes */
1749                                                 result = result * 1024;
1750                                         break;
1751                                         case 'M':
1752                                                 /* Megabytes -> bytes */
1753                                                 result = result * 1024 * 1024;
1754                                         break;
1755                                         case 'G':
1756                                                 /* Gigabytes -> bytes */
1757                                                 result = result * 1024 * 1024 * 1024;
1758                                         break;
1759                                 }
1760                         }
1761                 }
1762         }
1763         return r;
1764 }
1765
1766
1767 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, int index)
1768 {
1769         return ConfValueBool(target, std::string(tag), std::string(var), "", index);
1770 }
1771
1772 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index)
1773 {
1774         return ConfValueBool(target, std::string(tag), std::string(var), std::string(default_value), index);
1775 }
1776
1777 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, int index)
1778 {
1779         return ConfValueBool(target, tag, var, "", index);
1780 }
1781
1782 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index)
1783 {
1784         std::string result;
1785         if(!ConfValue(target, tag, var, default_value, index, result))
1786                 return false;
1787
1788         return ((result == "yes") || (result == "true") || (result == "1"));
1789 }
1790
1791 int ServerConfig::ConfValueEnum(ConfigDataHash &target, const char* tag)
1792 {
1793         return target.count(tag);
1794 }
1795
1796 int ServerConfig::ConfValueEnum(ConfigDataHash &target, const std::string &tag)
1797 {
1798         return target.count(tag);
1799 }
1800
1801 int ServerConfig::ConfVarEnum(ConfigDataHash &target, const char* tag, int index)
1802 {
1803         return ConfVarEnum(target, std::string(tag), index);
1804 }
1805
1806 int ServerConfig::ConfVarEnum(ConfigDataHash &target, const std::string &tag, int index)
1807 {
1808         ConfigDataHash::size_type pos = index;
1809
1810         if (pos < target.count(tag))
1811         {
1812                 ConfigDataHash::const_iterator iter = target.find(tag);
1813
1814                 for(int i = 0; i < index; i++)
1815                         iter++;
1816
1817                 return iter->second.size();
1818         }
1819
1820         return 0;
1821 }
1822
1823 /** Read the contents of a file located by `fname' into a file_cache pointed at by `F'.
1824  */
1825 bool ServerConfig::ReadFile(file_cache &F, const char* fname)
1826 {
1827         if (!fname || !*fname)
1828                 return false;
1829
1830         FILE* file = NULL;
1831         char linebuf[MAXBUF];
1832
1833         F.clear();
1834
1835         if ((*fname != '/') && (*fname != '\\'))
1836         {
1837                 std::string::size_type pos;
1838                 std::string confpath = ServerInstance->ConfigFileName;
1839                 std::string newfile = fname;
1840
1841                 if ((pos = confpath.rfind("/")) != std::string::npos)
1842                         newfile = confpath.substr(0, pos) + std::string("/") + fname;
1843                 else if ((pos = confpath.rfind("\\")) != std::string::npos)
1844                         newfile = confpath.substr(0, pos) + std::string("\\") + fname;
1845
1846                 if (!FileExists(newfile.c_str()))
1847                         return false;
1848                 file =  fopen(newfile.c_str(), "r");
1849         }
1850         else
1851         {
1852                 if (!FileExists(fname))
1853                         return false;
1854                 file =  fopen(fname, "r");
1855         }
1856
1857         if (file)
1858         {
1859                 while (!feof(file))
1860                 {
1861                         if (fgets(linebuf, sizeof(linebuf), file))
1862                                 linebuf[strlen(linebuf)-1] = 0;
1863                         else
1864                                 *linebuf = 0;
1865
1866                         if (!feof(file))
1867                         {
1868                                 F.push_back(*linebuf ? linebuf : " ");
1869                         }
1870                 }
1871
1872                 fclose(file);
1873         }
1874         else
1875                 return false;
1876
1877         return true;
1878 }
1879
1880 bool ServerConfig::FileExists(const char* file)
1881 {
1882         struct stat sb;
1883         if (stat(file, &sb) == -1)
1884                 return false;
1885
1886         if ((sb.st_mode & S_IFDIR) > 0)
1887                 return false;
1888
1889         FILE *input;
1890         if ((input = fopen (file, "r")) == NULL)
1891                 return false;
1892         else
1893         {
1894                 fclose(input);
1895                 return true;
1896         }
1897 }
1898
1899 char* ServerConfig::CleanFilename(char* name)
1900 {
1901         char* p = name + strlen(name);
1902         while ((p != name) && (*p != '/') && (*p != '\\')) p--;
1903         return (p != name ? ++p : p);
1904 }
1905
1906
1907 bool ServerConfig::DirValid(const char* dirandfile)
1908 {
1909 #ifdef WINDOWS
1910         return true;
1911 #endif
1912
1913         char work[1024];
1914         char buffer[1024];
1915         char otherdir[1024];
1916         int p;
1917
1918         strlcpy(work, dirandfile, 1024);
1919         p = strlen(work);
1920
1921         // we just want the dir
1922         while (*work)
1923         {
1924                 if (work[p] == '/')
1925                 {
1926                         work[p] = '\0';
1927                         break;
1928                 }
1929
1930                 work[p--] = '\0';
1931         }
1932
1933         // Get the current working directory
1934         if (getcwd(buffer, 1024 ) == NULL )
1935                 return false;
1936
1937         if (chdir(work) == -1)
1938                 return false;
1939
1940         if (getcwd(otherdir, 1024 ) == NULL )
1941                 return false;
1942
1943         if (chdir(buffer) == -1)
1944                 return false;
1945
1946         size_t t = strlen(work);
1947
1948         if (strlen(otherdir) >= t)
1949         {
1950                 otherdir[t] = '\0';
1951                 if (!strcmp(otherdir,work))
1952                 {
1953                         return true;
1954                 }
1955
1956                 return false;
1957         }
1958         else
1959         {
1960                 return false;
1961         }
1962 }
1963
1964 std::string ServerConfig::GetFullProgDir()
1965 {
1966         char buffer[PATH_MAX+1];
1967 #ifdef WINDOWS
1968         /* Windows has specific api calls to get the exe path that never fail.
1969          * For once, windows has something of use, compared to the POSIX code
1970          * for this, this is positively neato.
1971          */
1972         if (GetModuleFileName(NULL, buffer, MAX_PATH))
1973         {
1974                 std::string fullpath = buffer;
1975                 std::string::size_type n = fullpath.rfind("\\inspircd.exe");
1976                 return std::string(fullpath, 0, n);
1977         }
1978 #else
1979         // Get the current working directory
1980         if (getcwd(buffer, PATH_MAX))
1981         {
1982                 std::string remainder = this->argv[0];
1983
1984                 /* Does argv[0] start with /? its a full path, use it */
1985                 if (remainder[0] == '/')
1986                 {
1987                         std::string::size_type n = remainder.rfind("/inspircd");
1988                         return std::string(remainder, 0, n);
1989                 }
1990
1991                 std::string fullpath = std::string(buffer) + "/" + remainder;
1992                 std::string::size_type n = fullpath.rfind("/inspircd");
1993                 return std::string(fullpath, 0, n);
1994         }
1995 #endif
1996         return "/";
1997 }
1998
1999 InspIRCd* ServerConfig::GetInstance()
2000 {
2001         return ServerInstance;
2002 }
2003
2004 std::string ServerConfig::GetSID()
2005 {
2006         return sid;
2007 }
2008
2009 ValueItem::ValueItem(int value)
2010 {
2011         std::stringstream n;
2012         n << value;
2013         v = n.str();
2014 }
2015
2016 ValueItem::ValueItem(bool value)
2017 {
2018         std::stringstream n;
2019         n << value;
2020         v = n.str();
2021 }
2022
2023 ValueItem::ValueItem(const char* value)
2024 {
2025         v = value;
2026 }
2027
2028 void ValueItem::Set(const char* value)
2029 {
2030         v = value;
2031 }
2032
2033 void ValueItem::Set(int value)
2034 {
2035         std::stringstream n;
2036         n << value;
2037         v = n.str();
2038 }
2039
2040 int ValueItem::GetInteger()
2041 {
2042         if (v.empty())
2043                 return 0;
2044         return atoi(v.c_str());
2045 }
2046
2047 char* ValueItem::GetString()
2048 {
2049         return (char*)v.c_str();
2050 }
2051
2052 bool ValueItem::GetBool()
2053 {
2054         return (GetInteger() || v == "yes" || v == "true");
2055 }
2056
2057
2058
2059
2060 /*
2061  * XXX should this be in a class? -- w00t
2062  */
2063 bool InitTypes(ServerConfig* conf, const char*)
2064 {
2065         if (conf->opertypes.size())
2066         {
2067                 for (opertype_t::iterator n = conf->opertypes.begin(); n != conf->opertypes.end(); n++)
2068                 {
2069                         if (n->second)
2070                                 delete[] n->second;
2071                 }
2072         }
2073
2074         conf->opertypes.clear();
2075         return true;
2076 }
2077
2078 /*
2079  * XXX should this be in a class? -- w00t
2080  */
2081 bool InitClasses(ServerConfig* conf, const char*)
2082 {
2083         if (conf->operclass.size())
2084         {
2085                 for (operclass_t::iterator n = conf->operclass.begin(); n != conf->operclass.end(); n++)
2086                 {
2087                         if (n->second.commandlist)
2088                                 delete[] n->second.commandlist;
2089                         if (n->second.cmodelist)
2090                                 delete[] n->second.cmodelist;
2091                         if (n->second.umodelist)
2092                                 delete[] n->second.umodelist;
2093                 }
2094         }
2095
2096         conf->operclass.clear();
2097         return true;
2098 }
2099
2100 /*
2101  * XXX should this be in a class? -- w00t
2102  */
2103 bool DoType(ServerConfig* conf, const char*, char**, ValueList &values, int*)
2104 {
2105         const char* TypeName = values[0].GetString();
2106         const char* Classes = values[1].GetString();
2107
2108         conf->opertypes[TypeName] = strnewdup(Classes);
2109         return true;
2110 }
2111
2112 /*
2113  * XXX should this be in a class? -- w00t
2114  */
2115 bool DoClass(ServerConfig* conf, const char* tag, char**, ValueList &values, int*)
2116 {
2117         const char* ClassName = values[0].GetString();
2118         const char* CommandList = values[1].GetString();
2119         const char* UModeList = values[2].GetString();
2120         const char* CModeList = values[3].GetString();
2121
2122         for (const char* c = UModeList; *c; ++c)
2123         {
2124                 if ((*c < 'A' || *c > 'z') && *c != '*')
2125                 {
2126                         throw CoreException("Character " + std::string(1, *c) + " is not a valid mode in <class:usermodes>");
2127                 }
2128         }
2129         for (const char* c = CModeList; *c; ++c)
2130         {
2131                 if ((*c < 'A' || *c > 'z') && *c != '*')
2132                 {
2133                         throw CoreException("Character " + std::string(1, *c) + " is not a valid mode in <class:chanmodes>");
2134                 }
2135         }
2136
2137         conf->operclass[ClassName].commandlist = strnewdup(CommandList);
2138         conf->operclass[ClassName].umodelist = strnewdup(UModeList);
2139         conf->operclass[ClassName].cmodelist = strnewdup(CModeList);
2140         return true;
2141 }
2142
2143 /*
2144  * XXX should this be in a class? -- w00t
2145  */
2146 bool DoneClassesAndTypes(ServerConfig*, const char*)
2147 {
2148         return true;
2149 }
2150
2151
2152
2153 bool InitXLine(ServerConfig* conf, const char* tag)
2154 {
2155         return true;
2156 }
2157
2158 bool DoZLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
2159 {
2160         const char* reason = values[0].GetString();
2161         const char* ipmask = values[1].GetString();
2162
2163         ZLine* zl = new ZLine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, ipmask);
2164         if (!conf->GetInstance()->XLines->AddLine(zl, NULL))
2165                 delete zl;
2166
2167         return true;
2168 }
2169
2170 bool DoQLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
2171 {
2172         const char* reason = values[0].GetString();
2173         const char* nick = values[1].GetString();
2174
2175         QLine* ql = new QLine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, nick);
2176         if (!conf->GetInstance()->XLines->AddLine(ql, NULL))
2177                 delete ql;
2178
2179         return true;
2180 }
2181
2182 bool DoKLine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
2183 {
2184         const char* reason = values[0].GetString();
2185         const char* host = values[1].GetString();
2186
2187         XLineManager* xlm = conf->GetInstance()->XLines;
2188
2189         IdentHostPair ih = xlm->IdentSplit(host);
2190
2191         KLine* kl = new KLine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, ih.first.c_str(), ih.second.c_str());
2192         if (!xlm->AddLine(kl, NULL))
2193                 delete kl;
2194         return true;
2195 }
2196
2197 bool DoELine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types)
2198 {
2199         const char* reason = values[0].GetString();
2200         const char* host = values[1].GetString();
2201
2202         XLineManager* xlm = conf->GetInstance()->XLines;
2203
2204         IdentHostPair ih = xlm->IdentSplit(host);
2205
2206         ELine* el = new ELine(conf->GetInstance(), conf->GetInstance()->Time(), 0, "<Config>", reason, ih.first.c_str(), ih.second.c_str());
2207         if (!xlm->AddLine(el, NULL))
2208                 delete el;
2209         return true;
2210 }
2211
2212 // this should probably be moved to configreader, but atm it relies on CheckELines above.
2213 bool DoneELine(ServerConfig* conf, const char* tag)
2214 {
2215         for (std::vector<User*>::const_iterator u2 = conf->GetInstance()->Users->local_users.begin(); u2 != conf->GetInstance()->Users->local_users.end(); u2++)
2216         {
2217                 User* u = (User*)(*u2);
2218                 u->exempt = false;
2219         }
2220
2221         conf->GetInstance()->XLines->CheckELines();
2222         return true;
2223 }
2224
2225 void ConfigReaderThread::Run()
2226 {
2227         /* TODO: TheUser may be invalid by the time we get here! Check its validity, or pass a UID would be better */
2228         ServerInstance->Config->Read(do_bail, TheUser);
2229         ServerInstance->Threads->Mutex(true);
2230         this->SetExitFlag();
2231         ServerInstance->Threads->Mutex(false);
2232 }
2233