src/configreader.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
   5  *   Copyright (C) 2007-2009 Robin Burchell <robin+git@viroteck.net>
   6  *   Copyright (C) 2006-2009 Dennis Friis <peavey@inspircd.org>
   7  *   Copyright (C) 2006-2008 Craig Edwards <craigedwards@brainbox.cc>
   8  *   Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
   9  *   Copyright (C) 2006 Oliver Lupton <oliverlupton@gmail.com>
  10  *
  11  * This file is part of InspIRCd.  InspIRCd is free software: you can
  12  * redistribute it and/or modify it under the terms of the GNU General Public
  13  * License as published by the Free Software Foundation, version 2.
  14  *
  15  * This program is distributed in the hope that it will be useful, but WITHOUT
  16  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  17  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  18  * details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24
  25 #include "inspircd.h"
  26 #include "xline.h"
  27 #include "listmode.h"
  28 #include "exitcodes.h"
  29 #include "configparser.h"
  30 #include <iostream>
  31
  32 ServerLimits::ServerLimits(ConfigTag* tag)
  33         : NickMax(tag->getUInt("maxnick", 30))
  34         , ChanMax(tag->getUInt("maxchan", 64))
  35         , MaxModes(tag->getUInt("maxmodes", 20))
  36         , IdentMax(tag->getUInt("maxident", 10))
  37         , MaxQuit(tag->getUInt("maxquit", 255))
  38         , MaxTopic(tag->getUInt("maxtopic", 307))
  39         , MaxKick(tag->getUInt("maxkick", 255))
  40         , MaxReal(tag->getUInt("maxreal", tag->getUInt("maxgecos", 128)))
  41         , MaxAway(tag->getUInt("maxaway", 200))
  42         , MaxLine(tag->getUInt("maxline", 512))
  43         , MaxHost(tag->getUInt("maxhost", 64))
  44 {
  45 }
  46
  47 ServerConfig::ServerPaths::ServerPaths(ConfigTag* tag)
  48         : Config(tag->getString("configdir", INSPIRCD_CONFIG_PATH))
  49         , Data(tag->getString("datadir", INSPIRCD_DATA_PATH))
  50         , Log(tag->getString("logdir", INSPIRCD_LOG_PATH))
  51         , Module(tag->getString("moduledir", INSPIRCD_MODULE_PATH))
  52 {
  53 }
  54
  55 static ConfigTag* CreateEmptyTag()
  56 {
  57         ConfigItems* items;
  58         return ConfigTag::create("empty", "<auto>", 0, items);
  59 }
  60
  61 ServerConfig::ServerConfig()
  62         : EmptyTag(CreateEmptyTag())
  63         , Limits(EmptyTag)
  64         , Paths(EmptyTag)
  65         , RawLog(false)
  66         , NoSnoticeStack(false)
  67 {
  68 }
  69
  70 ServerConfig::~ServerConfig()
  71 {
  72         delete EmptyTag;
  73 }
  74
  75 static void ReadXLine(ServerConfig* conf, const std::string& tag, const std::string& key, XLineFactory* make)
  76 {
  77         ConfigTagList tags = conf->ConfTags(tag);
  78         for(ConfigIter i = tags.first; i != tags.second; ++i)
  79         {
  80                 ConfigTag* ctag = i->second;
  81                 std::string mask;
  82                 if (!ctag->readString(key, mask))
  83                         throw CoreException("<"+tag+":"+key+"> missing at " + ctag->getTagLocation());
  84                 std::string reason = ctag->getString("reason", "<Config>");
  85                 XLine* xl = make->Generate(ServerInstance->Time(), 0, "<Config>", reason, mask);
  86                 xl->from_config = true;
  87                 if (!ServerInstance->XLines->AddLine(xl, NULL))
  88                         delete xl;
  89         }
  90 }
  91
  92 typedef std::map<std::string, ConfigTag*> LocalIndex;
  93 void ServerConfig::CrossCheckOperClassType()
  94 {
  95         LocalIndex operclass;
  96         ConfigTagList tags = ConfTags("class");
  97         for(ConfigIter i = tags.first; i != tags.second; ++i)
  98         {
  99                 ConfigTag* tag = i->second;
 100                 std::string name = tag->getString("name");
 101                 if (name.empty())
 102                         throw CoreException("<class:name> missing from tag at " + tag->getTagLocation());
 103                 if (operclass.find(name) != operclass.end())
 104                         throw CoreException("Duplicate class block with name " + name + " at " + tag->getTagLocation());
 105                 operclass[name] = tag;
 106         }
 107         tags = ConfTags("type");
 108         for(ConfigIter i = tags.first; i != tags.second; ++i)
 109         {
 110                 ConfigTag* tag = i->second;
 111                 std::string name = tag->getString("name");
 112                 if (name.empty())
 113                         throw CoreException("<type:name> is missing from tag at " + tag->getTagLocation());
 114                 if (OperTypes.find(name) != OperTypes.end())
 115                         throw CoreException("Duplicate type block with name " + name + " at " + tag->getTagLocation());
 116
 117                 OperInfo* ifo = new OperInfo(name);
 118                 OperTypes[name] = ifo;
 119                 ifo->type_block = tag;
 120
 121                 std::string classname;
 122                 irc::spacesepstream str(tag->getString("classes"));
 123                 while (str.GetToken(classname))
 124                 {
 125                         LocalIndex::iterator cls = operclass.find(classname);
 126                         if (cls == operclass.end())
 127                                 throw CoreException("Oper type " + name + " has missing class " + classname);
 128                         ifo->class_blocks.push_back(cls->second);
 129                 }
 130         }
 131
 132         tags = ConfTags("oper");
 133         for(ConfigIter i = tags.first; i != tags.second; ++i)
 134         {
 135                 ConfigTag* tag = i->second;
 136
 137                 std::string name = tag->getString("name");
 138                 if (name.empty())
 139                         throw CoreException("<oper:name> missing from tag at " + tag->getTagLocation());
 140
 141                 std::string type = tag->getString("type");
 142                 OperIndex::iterator tblk = OperTypes.find(type);
 143                 if (tblk == OperTypes.end())
 144                         throw CoreException("Oper block " + name + " has missing type " + type);
 145                 if (oper_blocks.find(name) != oper_blocks.end())
 146                         throw CoreException("Duplicate oper block with name " + name + " at " + tag->getTagLocation());
 147
 148                 OperInfo* ifo = new OperInfo(type);
 149                 ifo->oper_block = tag;
 150                 ifo->type_block = tblk->second->type_block;
 151                 ifo->class_blocks.assign(tblk->second->class_blocks.begin(), tblk->second->class_blocks.end());
 152                 oper_blocks[name] = ifo;
 153         }
 154 }
 155
 156 void ServerConfig::CrossCheckConnectBlocks(ServerConfig* current)
 157 {
 158         typedef std::map<std::string, ConnectClass*> ClassMap;
 159         ClassMap oldBlocksByMask;
 160         if (current)
 161         {
 162                 for(ClassVector::iterator i = current->Classes.begin(); i != current->Classes.end(); ++i)
 163                 {
 164                         ConnectClass* c = *i;
 165                         if (c->name.compare(0, 8, "unnamed-", 8))
 166                         {
 167                                 oldBlocksByMask["n" + c->name] = c;
 168                         }
 169                         else if (c->type == CC_ALLOW || c->type == CC_DENY)
 170                         {
 171                                 std::string typeMask = (c->type == CC_ALLOW) ? "a" : "d";
 172                                 typeMask += c->host;
 173                                 oldBlocksByMask[typeMask] = c;
 174                         }
 175                 }
 176         }
 177
 178         size_t blk_count = config_data.count("connect");
 179         if (blk_count == 0)
 180         {
 181                 // No connect blocks found; make a trivial default block
 182                 ConfigItems* items;
 183                 ConfigTag* tag = ConfigTag::create("connect", "<auto>", 0, items);
 184                 (*items)["allow"] = "*";
 185                 config_data.insert(std::make_pair("connect", tag));
 186                 blk_count = 1;
 187         }
 188
 189         Classes.resize(blk_count);
 190         std::map<std::string, size_t> names;
 191
 192         bool try_again = true;
 193         for(size_t tries = 0; try_again; tries++)
 194         {
 195                 try_again = false;
 196                 ConfigTagList tags = ConfTags("connect");
 197                 size_t i = 0;
 198                 for(ConfigIter it = tags.first; it != tags.second; ++it, ++i)
 199                 {
 200                         ConfigTag* tag = it->second;
 201                         if (Classes[i])
 202                                 continue;
 203
 204                         ConnectClass* parent = NULL;
 205                         std::string parentName = tag->getString("parent");
 206                         if (!parentName.empty())
 207                         {
 208                                 std::map<std::string, size_t>::const_iterator parentIter = names.find(parentName);
 209                                 if (parentIter == names.end())
 210                                 {
 211                                         try_again = true;
 212                                         // couldn't find parent this time. If it's the last time, we'll never find it.
 213                                         if (tries >= blk_count)
 214                                                 throw CoreException("Could not find parent connect class \"" + parentName + "\" for connect block at " + tag->getTagLocation());
 215                                         continue;
 216                                 }
 217                                 parent = Classes[parentIter->second];
 218                         }
 219
 220                         std::string name = tag->getString("name");
 221                         std::string mask, typeMask;
 222                         char type;
 223
 224                         if (tag->readString("allow", mask, false))
 225                         {
 226                                 type = CC_ALLOW;
 227                                 typeMask = 'a' + mask;
 228                         }
 229                         else if (tag->readString("deny", mask, false))
 230                         {
 231                                 type = CC_DENY;
 232                                 typeMask = 'd' + mask;
 233                         }
 234                         else if (!name.empty())
 235                         {
 236                                 type = CC_NAMED;
 237                                 mask = name;
 238                                 typeMask = 'n' + mask;
 239                         }
 240                         else
 241                         {
 242                                 throw CoreException("Connect class must have allow, deny, or name specified at " + tag->getTagLocation());
 243                         }
 244
 245                         if (name.empty())
 246                         {
 247                                 name = "unnamed-" + ConvToStr(i);
 248                         }
 249                         else
 250                         {
 251                                 typeMask = 'n' + name;
 252                         }
 253
 254                         if (names.find(name) != names.end())
 255                                 throw CoreException("Two connect classes with name \"" + name + "\" defined!");
 256                         names[name] = i;
 257
 258                         ConnectClass* me = parent ?
 259                                 new ConnectClass(tag, type, mask, *parent) :
 260                                 new ConnectClass(tag, type, mask);
 261
 262                         me->name = name;
 263
 264                         me->registration_timeout = tag->getDuration("timeout", me->registration_timeout);
 265                         me->pingtime = tag->getDuration("pingfreq", me->pingtime);
 266                         std::string sendq;
 267                         if (tag->readString("sendq", sendq))
 268                         {
 269                                 // attempt to guess a good hard/soft sendq from a single value
 270                                 unsigned long value = strtoul(sendq.c_str(), NULL, 10);
 271                                 if (value > 16384)
 272                                         me->softsendqmax = value / 16;
 273                                 else
 274                                         me->softsendqmax = value;
 275                                 me->hardsendqmax = value * 8;
 276                         }
 277                         me->softsendqmax = tag->getUInt("softsendq", me->softsendqmax);
 278                         me->hardsendqmax = tag->getUInt("hardsendq", me->hardsendqmax);
 279                         me->recvqmax = tag->getUInt("recvq", me->recvqmax);
 280                         me->penaltythreshold = tag->getUInt("threshold", me->penaltythreshold);
 281                         me->commandrate = tag->getUInt("commandrate", me->commandrate);
 282                         me->fakelag = tag->getBool("fakelag", me->fakelag);
 283                         me->maxlocal = tag->getUInt("localmax", me->maxlocal);
 284                         me->maxglobal = tag->getUInt("globalmax", me->maxglobal);
 285                         me->maxchans = tag->getUInt("maxchans", me->maxchans);
 286                         me->maxconnwarn = tag->getBool("maxconnwarn", me->maxconnwarn);
 287                         me->limit = tag->getUInt("limit", me->limit);
 288                         me->resolvehostnames = tag->getBool("resolvehostnames", me->resolvehostnames);
 289
 290                         std::string ports = tag->getString("port");
 291                         if (!ports.empty())
 292                         {
 293                                 irc::portparser portrange(ports, false);
 294                                 while (int port = portrange.GetToken())
 295                                         me->ports.insert(port);
 296                         }
 297
 298                         ClassMap::iterator oldMask = oldBlocksByMask.find(typeMask);
 299                         if (oldMask != oldBlocksByMask.end())
 300                         {
 301                                 ConnectClass* old = oldMask->second;
 302                                 oldBlocksByMask.erase(oldMask);
 303                                 old->Update(me);
 304                                 delete me;
 305                                 me = old;
 306                         }
 307                         Classes[i] = me;
 308                 }
 309         }
 310 }
 311
 312 void ServerConfig::Fill()
 313 {
 314         ConfigTag* options = ConfValue("options");
 315         ConfigTag* security = ConfValue("security");
 316         ConfigTag* server = ConfValue("server");
 317         if (sid.empty())
 318         {
 319                 ServerName = server->getString("name", "irc.example.com", InspIRCd::IsHost);
 320
 321                 sid = server->getString("id");
 322                 if (!sid.empty() && !InspIRCd::IsSID(sid))
 323                         throw CoreException(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.");
 324
 325                 CaseMapping = options->getString("casemapping", "rfc1459");
 326                 if (CaseMapping == "ascii")
 327                         national_case_insensitive_map = ascii_case_insensitive_map;
 328                 else if (CaseMapping == "rfc1459")
 329                         national_case_insensitive_map = rfc_case_insensitive_map;
 330                 else
 331                         throw CoreException("<options:casemapping> must be set to 'ascii', or 'rfc1459'");
 332         }
 333         else
 334         {
 335                 std::string name = server->getString("name");
 336                 if (!name.empty() && name != ServerName)
 337                         throw CoreException("You must restart to change the server name");
 338
 339                 std::string nsid = server->getString("id");
 340                 if (!nsid.empty() && nsid != sid)
 341                         throw CoreException("You must restart to change the server id");
 342
 343                 std::string casemapping = options->getString("casemapping");
 344                 if (!casemapping.empty() && casemapping != CaseMapping)
 345                         throw CoreException("You must restart to change the server casemapping");
 346
 347         }
 348         SoftLimit = ConfValue("performance")->getUInt("softlimit", (SocketEngine::GetMaxFds() > 0 ? SocketEngine::GetMaxFds() : LONG_MAX), 10);
 349         CCOnConnect = ConfValue("performance")->getBool("clonesonconnect", true);
 350         MaxConn = ConfValue("performance")->getUInt("somaxconn", SOMAXCONN);
 351         TimeSkipWarn = ConfValue("performance")->getDuration("timeskipwarn", 2, 0, 30);
 352         XLineMessage = options->getString("xlinemessage", options->getString("moronbanner", "You're banned!"));
 353         ServerDesc = server->getString("description", "Configure Me");
 354         Network = server->getString("network", "Network");
 355         NetBufferSize = ConfValue("performance")->getInt("netbuffersize", 10240, 1024, 65534);
 356         CustomVersion = security->getString("customversion");
 357         HideBans = security->getBool("hidebans");
 358         HideServer = security->getString("hideserver", security->getString("hidewhois"));
 359         SyntaxHints = options->getBool("syntaxhints");
 360         FullHostInTopic = options->getBool("hostintopic");
 361         MaxTargets = security->getUInt("maxtargets", 20, 1, 31);
 362         DefaultModes = options->getString("defaultmodes", "not");
 363         PID = ConfValue("pid")->getString("file");
 364         MaxChans = ConfValue("channels")->getUInt("users", 20);
 365         OperMaxChans = ConfValue("channels")->getUInt("opers", 0);
 366         c_ipv4_range = ConfValue("cidr")->getUInt("ipv4clone", 32, 1, 32);
 367         c_ipv6_range = ConfValue("cidr")->getUInt("ipv6clone", 128, 1, 128);
 368         Limits = ServerLimits(ConfValue("limits"));
 369         Paths = ServerPaths(ConfValue("path"));
 370         NoSnoticeStack = options->getBool("nosnoticestack", false);
 371
 372         std::string defbind = options->getString("defaultbind");
 373         if (stdalgo::string::equalsci(defbind, "ipv4"))
 374         {
 375                 WildcardIPv6 = false;
 376         }
 377         else if (stdalgo::string::equalsci(defbind, "ipv6"))
 378         {
 379                 WildcardIPv6 = true;
 380         }
 381         else
 382         {
 383                 WildcardIPv6 = true;
 384                 int socktest = socket(AF_INET6, SOCK_STREAM, 0);
 385                 if (socktest < 0)
 386                         WildcardIPv6 = false;
 387                 else
 388                         SocketEngine::Close(socktest);
 389         }
 390
 391         ServerInstance->XLines->ClearConfigLines();
 392         ReadXLine(this, "badip", "ipmask", ServerInstance->XLines->GetFactory("Z"));
 393         ReadXLine(this, "badnick", "nick", ServerInstance->XLines->GetFactory("Q"));
 394         ReadXLine(this, "badhost", "host", ServerInstance->XLines->GetFactory("K"));
 395         ReadXLine(this, "exception", "host", ServerInstance->XLines->GetFactory("E"));
 396
 397         const std::string restrictbannedusers = options->getString("restrictbannedusers", "yes");
 398         if (stdalgo::string::equalsci(restrictbannedusers, "no"))
 399                 RestrictBannedUsers = ServerConfig::BUT_NORMAL;
 400         else if (stdalgo::string::equalsci(restrictbannedusers, "silent"))
 401                 RestrictBannedUsers = ServerConfig::BUT_RESTRICT_SILENT;
 402         else if (stdalgo::string::equalsci(restrictbannedusers, "yes"))
 403                 RestrictBannedUsers =  ServerConfig::BUT_RESTRICT_NOTIFY;
 404         else
 405                 throw CoreException(restrictbannedusers + " is an invalid <options:restrictbannedusers> value, at " + options->getTagLocation());
 406 }
 407
 408 // WARNING: it is not safe to use most of the codebase in this function, as it
 409 // will run in the config reader thread
 410 void ServerConfig::Read()
 411 {
 412         /* Load and parse the config file, if there are any errors then explode */
 413
 414         ParseStack stack(this);
 415         try
 416         {
 417                 valid = stack.ParseFile(ServerInstance->ConfigFileName, 0);
 418         }
 419         catch (CoreException& err)
 420         {
 421                 valid = false;
 422                 errstr << err.GetReason() << std::endl;
 423         }
 424 }
 425
 426 void ServerConfig::Apply(ServerConfig* old, const std::string &useruid)
 427 {
 428         valid = true;
 429         if (old)
 430         {
 431                 /*
 432                  * These values can only be set on boot. Keep their old values. Do it before we send messages so we actually have a servername.
 433                  */
 434                 this->CaseMapping = old->CaseMapping;
 435                 this->ServerName = old->ServerName;
 436                 this->sid = old->sid;
 437                 this->cmdline = old->cmdline;
 438         }
 439
 440         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 441         try
 442         {
 443                 // Ensure the user has actually edited ther config.
 444                 ConfigTagList dietags = ConfTags("die");
 445                 if (dietags.first != dietags.second)
 446                 {
 447                         errstr << "Your configuration has not been edited correctly!" << std::endl;
 448                         for (ConfigIter iter = dietags.first; iter != dietags.second; ++iter)
 449                         {
 450                                 ConfigTag* tag = iter->second;
 451                                 const std::string reason = tag->getString("reason", "You left a <die> tag in your config", 1);
 452                                 errstr << reason <<  " (at " << tag->getTagLocation() << ")" << std::endl;
 453                         }
 454                 }
 455
 456                 Fill();
 457
 458                 // Handle special items
 459                 CrossCheckOperClassType();
 460                 CrossCheckConnectBlocks(old);
 461         }
 462         catch (CoreException &ce)
 463         {
 464                 errstr << ce.GetReason() << std::endl;
 465         }
 466
 467         // Check errors before dealing with failed binds, since continuing on failed bind is wanted in some circumstances.
 468         valid = errstr.str().empty();
 469
 470         // write once here, to try it out and make sure its ok
 471         if (valid)
 472                 ServerInstance->WritePID(this->PID, !old);
 473
 474         ConfigTagList binds = ConfTags("bind");
 475         if (binds.first == binds.second)
 476                  errstr << "Possible configuration error: you have not defined any <bind> blocks." << std::endl
 477                          << "You will need to do this if you want clients to be able to connect!" << std::endl;
 478
 479         if (old && valid)
 480         {
 481                 // On first run, ports are bound later on
 482                 FailedPortList pl;
 483                 ServerInstance->BindPorts(pl);
 484                 if (pl.size())
 485                 {
 486                         errstr << "Not all your client ports could be bound." << std::endl
 487                                 << "The following port(s) failed to bind:" << std::endl;
 488
 489                         int j = 1;
 490                         for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 491                         {
 492                                 errstr << j << ".\tAddress: " << i->first.str() << "\tReason: " << strerror(i->second) << std::endl;
 493                         }
 494                 }
 495         }
 496
 497         User* user = useruid.empty() ? NULL : ServerInstance->FindNick(useruid);
 498
 499         if (!valid)
 500         {
 501                 ServerInstance->Logs->Log("CONFIG", LOG_DEFAULT, "There were errors in your configuration file:");
 502                 Classes.clear();
 503         }
 504
 505         while (errstr.good())
 506         {
 507                 std::string line;
 508                 getline(errstr, line, '\n');
 509                 if (line.empty())
 510                         continue;
 511                 // On startup, print out to console (still attached at this point)
 512                 if (!old)
 513                         std::cout << line << std::endl;
 514                 // If a user is rehashing, tell them directly
 515                 if (user)
 516                         user->WriteRemoteNotice(InspIRCd::Format("*** %s", line.c_str()));
 517                 // Also tell opers
 518                 ServerInstance->SNO->WriteGlobalSno('a', line);
 519         }
 520
 521         errstr.clear();
 522         errstr.str(std::string());
 523
 524         /* No old configuration -> initial boot, nothing more to do here */
 525         if (!old)
 526         {
 527                 if (!valid)
 528                 {
 529                         ServerInstance->Exit(EXIT_STATUS_CONFIG);
 530                 }
 531
 532                 return;
 533         }
 534
 535
 536         // If there were errors processing configuration, don't touch modules.
 537         if (!valid)
 538                 return;
 539
 540         ApplyModules(user);
 541
 542         if (user)
 543                 user->WriteRemoteNotice("*** Successfully rehashed server.");
 544         ServerInstance->SNO->WriteGlobalSno('a', "*** Successfully rehashed server.");
 545 }
 546
 547 void ServerConfig::ApplyModules(User* user)
 548 {
 549         std::vector<std::string> added_modules;
 550         ModuleManager::ModuleMap removed_modules = ServerInstance->Modules->GetModules();
 551
 552         ConfigTagList tags = ConfTags("module");
 553         for(ConfigIter i = tags.first; i != tags.second; ++i)
 554         {
 555                 ConfigTag* tag = i->second;
 556                 std::string name;
 557                 if (tag->readString("name", name))
 558                 {
 559                         name = ModuleManager::ExpandModName(name);
 560                         // if this module is already loaded, the erase will succeed, so we need do nothing
 561                         // otherwise, we need to add the module (which will be done later)
 562                         if (removed_modules.erase(name) == 0)
 563                                 added_modules.push_back(name);
 564                 }
 565         }
 566
 567         for (ModuleManager::ModuleMap::iterator i = removed_modules.begin(); i != removed_modules.end(); ++i)
 568         {
 569                 const std::string& modname = i->first;
 570                 // Don't remove core_*.so, just remove m_*.so
 571                 if (InspIRCd::Match(modname, "core_*.so", ascii_case_insensitive_map))
 572                         continue;
 573                 if (ServerInstance->Modules->Unload(i->second))
 574                 {
 575                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH UNLOADED MODULE: %s", modname.c_str());
 576
 577                         if (user)
 578                                 user->WriteNumeric(RPL_UNLOADEDMODULE, modname, InspIRCd::Format("Module %s successfully unloaded.", modname.c_str()));
 579                         else
 580                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully unloaded.", modname.c_str());
 581                 }
 582                 else
 583                 {
 584                         if (user)
 585                                 user->WriteNumeric(ERR_CANTUNLOADMODULE, modname, InspIRCd::Format("Failed to unload module %s: %s", modname.c_str(), ServerInstance->Modules->LastError().c_str()));
 586                         else
 587                                 ServerInstance->SNO->WriteGlobalSno('a', "Failed to unload module %s: %s", modname.c_str(), ServerInstance->Modules->LastError().c_str());
 588                 }
 589         }
 590
 591         for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 592         {
 593                 // Skip modules which are already loaded.
 594                 if (ServerInstance->Modules->Find(*adding))
 595                         continue;
 596
 597                 if (ServerInstance->Modules->Load(*adding))
 598                 {
 599                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH LOADED MODULE: %s",adding->c_str());
 600                         if (user)
 601                                 user->WriteNumeric(RPL_LOADEDMODULE, *adding, InspIRCd::Format("Module %s successfully loaded.", adding->c_str()));
 602                         else
 603                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully loaded.", adding->c_str());
 604                 }
 605                 else
 606                 {
 607                         if (user)
 608                                 user->WriteNumeric(ERR_CANTLOADMODULE, *adding, InspIRCd::Format("Failed to load module %s: %s", adding->c_str(), ServerInstance->Modules->LastError().c_str()));
 609                         else
 610                                 ServerInstance->SNO->WriteGlobalSno('a', "Failed to load module %s: %s", adding->c_str(), ServerInstance->Modules->LastError().c_str());
 611                 }
 612         }
 613 }
 614
 615 ConfigTag* ServerConfig::ConfValue(const std::string &tag)
 616 {
 617         ConfigTagList found = config_data.equal_range(tag);
 618         if (found.first == found.second)
 619                 return EmptyTag;
 620         ConfigTag* rv = found.first->second;
 621         found.first++;
 622         if (found.first != found.second)
 623                 ServerInstance->Logs->Log("CONFIG", LOG_DEFAULT, "Multiple <" + tag + "> tags found; only first will be used "
 624                         "(first at " + rv->getTagLocation() + "; second at " + found.first->second->getTagLocation() + ")");
 625         return rv;
 626 }
 627
 628 ConfigTagList ServerConfig::ConfTags(const std::string& tag)
 629 {
 630         return config_data.equal_range(tag);
 631 }
 632
 633 std::string ServerConfig::Escape(const std::string& str, bool xml)
 634 {
 635         std::string escaped;
 636         for (std::string::const_iterator it = str.begin(); it != str.end(); ++it)
 637         {
 638                 switch (*it)
 639                 {
 640                         case '"':
 641                                 escaped += xml ? "&quot;" : "\"";
 642                                 break;
 643                         case '&':
 644                                 escaped += xml ? "&amp;" : "&";
 645                                 break;
 646                         case '\\':
 647                                 escaped += xml ? "\\" : "\\\\";
 648                                 break;
 649                         default:
 650                                 escaped += *it;
 651                                 break;
 652                 }
 653         }
 654         return escaped;
 655 }
 656
 657 void ConfigReaderThread::Run()
 658 {
 659         Config->Read();
 660         done = true;
 661 }
 662
 663 void ConfigReaderThread::Finish()
 664 {
 665         ServerConfig* old = ServerInstance->Config;
 666         ServerInstance->Logs->Log("CONFIG", LOG_DEBUG, "Switching to new configuration...");
 667         ServerInstance->Config = this->Config;
 668         Config->Apply(old, TheUserUID);
 669
 670         if (Config->valid)
 671         {
 672                 /*
 673                  * Apply the changed configuration from the rehash.
 674                  *
 675                  * XXX: The order of these is IMPORTANT, do not reorder them without testing
 676                  * thoroughly!!!
 677                  */
 678                 ServerInstance->Users.RehashCloneCounts();
 679                 ServerInstance->XLines->CheckELines();
 680                 ServerInstance->XLines->ApplyLines();
 681                 User* user = ServerInstance->FindNick(TheUserUID);
 682
 683                 ConfigStatus status(user);
 684                 const ModuleManager::ModuleMap& mods = ServerInstance->Modules->GetModules();
 685                 for (ModuleManager::ModuleMap::const_iterator i = mods.begin(); i != mods.end(); ++i)
 686                 {
 687                         try
 688                         {
 689                                 ServerInstance->Logs->Log("MODULE", LOG_DEBUG, "Rehashing " + i->first);
 690                                 i->second->ReadConfig(status);
 691                         }
 692                         catch (CoreException& modex)
 693                         {
 694                                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "Exception caught: " + modex.GetReason());
 695                                 if (user)
 696                                         user->WriteNotice(i->first + ": " + modex.GetReason());
 697                         }
 698                 }
 699
 700                 // The description of this server may have changed - update it for WHOIS etc.
 701                 ServerInstance->FakeClient->server->description = Config->ServerDesc;
 702
 703                 ServerInstance->ISupport.Build();
 704
 705                 ServerInstance->Logs->CloseLogs();
 706                 ServerInstance->Logs->OpenFileLogs();
 707
 708                 if (Config->RawLog && !old->RawLog)
 709                         ServerInstance->Users->ServerNoticeAll("*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.");
 710
 711                 Config = old;
 712         }
 713         else
 714         {
 715                 // whoops, abort!
 716                 ServerInstance->Config = old;
 717         }
 718 }