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         insp::flat_set<std::string> configlines;
  78
  79         ConfigTagList tags = conf->ConfTags(tag);
  80         for(ConfigIter i = tags.first; i != tags.second; ++i)
  81         {
  82                 ConfigTag* ctag = i->second;
  83                 std::string mask;
  84                 if (!ctag->readString(key, mask))
  85                         throw CoreException("<"+tag+":"+key+"> missing at " + ctag->getTagLocation());
  86                 std::string reason = ctag->getString("reason", "<Config>");
  87                 XLine* xl = make->Generate(ServerInstance->Time(), 0, "<Config>", reason, mask);
  88                 xl->from_config = true;
  89                 configlines.insert(xl->Displayable());
  90                 if (!ServerInstance->XLines->AddLine(xl, NULL))
  91                         delete xl;
  92         }
  93
  94         ServerInstance->XLines->ExpireRemovedConfigLines(make->GetType(), configlines);
  95 }
  96
  97 typedef std::map<std::string, ConfigTag*> LocalIndex;
  98 void ServerConfig::CrossCheckOperClassType()
  99 {
 100         LocalIndex operclass;
 101         ConfigTagList tags = ConfTags("class");
 102         for(ConfigIter i = tags.first; i != tags.second; ++i)
 103         {
 104                 ConfigTag* tag = i->second;
 105                 std::string name = tag->getString("name");
 106                 if (name.empty())
 107                         throw CoreException("<class:name> missing from tag at " + tag->getTagLocation());
 108                 if (operclass.find(name) != operclass.end())
 109                         throw CoreException("Duplicate class block with name " + name + " at " + tag->getTagLocation());
 110                 operclass[name] = tag;
 111         }
 112         tags = ConfTags("type");
 113         for(ConfigIter i = tags.first; i != tags.second; ++i)
 114         {
 115                 ConfigTag* tag = i->second;
 116                 std::string name = tag->getString("name");
 117                 if (name.empty())
 118                         throw CoreException("<type:name> is missing from tag at " + tag->getTagLocation());
 119                 if (OperTypes.find(name) != OperTypes.end())
 120                         throw CoreException("Duplicate type block with name " + name + " at " + tag->getTagLocation());
 121
 122                 OperInfo* ifo = new OperInfo(name);
 123                 OperTypes[name] = ifo;
 124                 ifo->type_block = tag;
 125
 126                 std::string classname;
 127                 irc::spacesepstream str(tag->getString("classes"));
 128                 while (str.GetToken(classname))
 129                 {
 130                         LocalIndex::iterator cls = operclass.find(classname);
 131                         if (cls == operclass.end())
 132                                 throw CoreException("Oper type " + name + " has missing class " + classname);
 133                         ifo->class_blocks.push_back(cls->second);
 134                 }
 135         }
 136
 137         tags = ConfTags("oper");
 138         for(ConfigIter i = tags.first; i != tags.second; ++i)
 139         {
 140                 ConfigTag* tag = i->second;
 141
 142                 std::string name = tag->getString("name");
 143                 if (name.empty())
 144                         throw CoreException("<oper:name> missing from tag at " + tag->getTagLocation());
 145
 146                 std::string type = tag->getString("type");
 147                 OperIndex::iterator tblk = OperTypes.find(type);
 148                 if (tblk == OperTypes.end())
 149                         throw CoreException("Oper block " + name + " has missing type " + type);
 150                 if (oper_blocks.find(name) != oper_blocks.end())
 151                         throw CoreException("Duplicate oper block with name " + name + " at " + tag->getTagLocation());
 152
 153                 OperInfo* ifo = new OperInfo(type);
 154                 ifo->oper_block = tag;
 155                 ifo->type_block = tblk->second->type_block;
 156                 ifo->class_blocks.assign(tblk->second->class_blocks.begin(), tblk->second->class_blocks.end());
 157                 oper_blocks[name] = ifo;
 158         }
 159 }
 160
 161 void ServerConfig::CrossCheckConnectBlocks(ServerConfig* current)
 162 {
 163         typedef std::map<std::string, ConnectClass*> ClassMap;
 164         ClassMap oldBlocksByMask;
 165         if (current)
 166         {
 167                 for(ClassVector::iterator i = current->Classes.begin(); i != current->Classes.end(); ++i)
 168                 {
 169                         ConnectClass* c = *i;
 170                         if (c->name.compare(0, 8, "unnamed-", 8))
 171                         {
 172                                 oldBlocksByMask["n" + c->name] = c;
 173                         }
 174                         else if (c->type == CC_ALLOW || c->type == CC_DENY)
 175                         {
 176                                 std::string typeMask = (c->type == CC_ALLOW) ? "a" : "d";
 177                                 typeMask += c->host;
 178                                 oldBlocksByMask[typeMask] = c;
 179                         }
 180                 }
 181         }
 182
 183         size_t blk_count = config_data.count("connect");
 184         if (blk_count == 0)
 185         {
 186                 // No connect blocks found; make a trivial default block
 187                 ConfigItems* items;
 188                 ConfigTag* tag = ConfigTag::create("connect", "<auto>", 0, items);
 189                 (*items)["allow"] = "*";
 190                 config_data.insert(std::make_pair("connect", tag));
 191                 blk_count = 1;
 192         }
 193
 194         Classes.resize(blk_count);
 195         std::map<std::string, size_t> names;
 196
 197         bool try_again = true;
 198         for(size_t tries = 0; try_again; tries++)
 199         {
 200                 try_again = false;
 201                 ConfigTagList tags = ConfTags("connect");
 202                 size_t i = 0;
 203                 for(ConfigIter it = tags.first; it != tags.second; ++it, ++i)
 204                 {
 205                         ConfigTag* tag = it->second;
 206                         if (Classes[i])
 207                                 continue;
 208
 209                         ConnectClass* parent = NULL;
 210                         std::string parentName = tag->getString("parent");
 211                         if (!parentName.empty())
 212                         {
 213                                 std::map<std::string, size_t>::const_iterator parentIter = names.find(parentName);
 214                                 if (parentIter == names.end())
 215                                 {
 216                                         try_again = true;
 217                                         // couldn't find parent this time. If it's the last time, we'll never find it.
 218                                         if (tries >= blk_count)
 219                                                 throw CoreException("Could not find parent connect class \"" + parentName + "\" for connect block at " + tag->getTagLocation());
 220                                         continue;
 221                                 }
 222                                 parent = Classes[parentIter->second];
 223                         }
 224
 225                         std::string name = tag->getString("name");
 226                         std::string mask, typeMask;
 227                         char type;
 228
 229                         if (tag->readString("allow", mask, false))
 230                         {
 231                                 type = CC_ALLOW;
 232                                 typeMask = 'a' + mask;
 233                         }
 234                         else if (tag->readString("deny", mask, false))
 235                         {
 236                                 type = CC_DENY;
 237                                 typeMask = 'd' + mask;
 238                         }
 239                         else if (!name.empty())
 240                         {
 241                                 type = CC_NAMED;
 242                                 mask = name;
 243                                 typeMask = 'n' + mask;
 244                         }
 245                         else
 246                         {
 247                                 throw CoreException("Connect class must have allow, deny, or name specified at " + tag->getTagLocation());
 248                         }
 249
 250                         if (name.empty())
 251                         {
 252                                 name = "unnamed-" + ConvToStr(i);
 253                         }
 254                         else
 255                         {
 256                                 typeMask = 'n' + name;
 257                         }
 258
 259                         if (names.find(name) != names.end())
 260                                 throw CoreException("Two connect classes with name \"" + name + "\" defined!");
 261                         names[name] = i;
 262
 263                         ConnectClass* me = parent ?
 264                                 new ConnectClass(tag, type, mask, *parent) :
 265                                 new ConnectClass(tag, type, mask);
 266
 267                         me->name = name;
 268
 269                         me->registration_timeout = tag->getDuration("timeout", me->registration_timeout);
 270                         me->pingtime = tag->getDuration("pingfreq", me->pingtime);
 271                         std::string sendq;
 272                         if (tag->readString("sendq", sendq))
 273                         {
 274                                 // attempt to guess a good hard/soft sendq from a single value
 275                                 unsigned long value = strtoul(sendq.c_str(), NULL, 10);
 276                                 if (value > 16384)
 277                                         me->softsendqmax = value / 16;
 278                                 else
 279                                         me->softsendqmax = value;
 280                                 me->hardsendqmax = value * 8;
 281                         }
 282                         me->softsendqmax = tag->getUInt("softsendq", me->softsendqmax);
 283                         me->hardsendqmax = tag->getUInt("hardsendq", me->hardsendqmax);
 284                         me->recvqmax = tag->getUInt("recvq", me->recvqmax);
 285                         me->penaltythreshold = tag->getUInt("threshold", me->penaltythreshold);
 286                         me->commandrate = tag->getUInt("commandrate", me->commandrate);
 287                         me->fakelag = tag->getBool("fakelag", me->fakelag);
 288                         me->maxlocal = tag->getUInt("localmax", me->maxlocal);
 289                         me->maxglobal = tag->getUInt("globalmax", me->maxglobal);
 290                         me->maxchans = tag->getUInt("maxchans", me->maxchans);
 291                         me->maxconnwarn = tag->getBool("maxconnwarn", me->maxconnwarn);
 292                         me->limit = tag->getUInt("limit", me->limit);
 293                         me->resolvehostnames = tag->getBool("resolvehostnames", me->resolvehostnames);
 294
 295                         std::string ports = tag->getString("port");
 296                         if (!ports.empty())
 297                         {
 298                                 irc::portparser portrange(ports, false);
 299                                 while (int port = portrange.GetToken())
 300                                         me->ports.insert(port);
 301                         }
 302
 303                         ClassMap::iterator oldMask = oldBlocksByMask.find(typeMask);
 304                         if (oldMask != oldBlocksByMask.end())
 305                         {
 306                                 ConnectClass* old = oldMask->second;
 307                                 oldBlocksByMask.erase(oldMask);
 308                                 old->Update(me);
 309                                 delete me;
 310                                 me = old;
 311                         }
 312                         Classes[i] = me;
 313                 }
 314         }
 315 }
 316
 317 static std::string GetServerName()
 318 {
 319 #ifndef _WIN32
 320         char hostname[256];
 321         if (gethostname(hostname, sizeof(hostname)) == 0)
 322         {
 323                 std::string name(hostname);
 324                 if (name.find('.') == std::string::npos)
 325                         name.push_back('.');
 326
 327                 if (name.length() <= ServerInstance->Config->Limits.MaxHost && InspIRCd::IsHost(name))
 328                         return name;
 329         }
 330 #endif
 331         return "irc.example.com";
 332 }
 333
 334 void ServerConfig::Fill()
 335 {
 336         ConfigTag* options = ConfValue("options");
 337         ConfigTag* security = ConfValue("security");
 338         ConfigTag* server = ConfValue("server");
 339         if (sid.empty())
 340         {
 341                 ServerName = server->getString("name", GetServerName(), InspIRCd::IsHost);
 342
 343                 sid = server->getString("id");
 344                 if (!sid.empty() && !InspIRCd::IsSID(sid))
 345                         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.");
 346
 347                 CaseMapping = options->getString("casemapping", "rfc1459");
 348                 if (CaseMapping == "ascii")
 349                         national_case_insensitive_map = ascii_case_insensitive_map;
 350                 else if (CaseMapping == "rfc1459")
 351                         national_case_insensitive_map = rfc_case_insensitive_map;
 352                 else
 353                         throw CoreException("<options:casemapping> must be set to 'ascii', or 'rfc1459'");
 354         }
 355         else
 356         {
 357                 std::string name = server->getString("name");
 358                 if (!name.empty() && name != ServerName)
 359                         throw CoreException("You must restart to change the server name");
 360
 361                 std::string nsid = server->getString("id");
 362                 if (!nsid.empty() && nsid != sid)
 363                         throw CoreException("You must restart to change the server id");
 364
 365                 std::string casemapping = options->getString("casemapping");
 366                 if (!casemapping.empty() && casemapping != CaseMapping)
 367                         throw CoreException("You must restart to change the server casemapping");
 368
 369         }
 370         SoftLimit = ConfValue("performance")->getUInt("softlimit", (SocketEngine::GetMaxFds() > 0 ? SocketEngine::GetMaxFds() : LONG_MAX), 10);
 371         CCOnConnect = ConfValue("performance")->getBool("clonesonconnect", true);
 372         MaxConn = ConfValue("performance")->getUInt("somaxconn", SOMAXCONN);
 373         TimeSkipWarn = ConfValue("performance")->getDuration("timeskipwarn", 2, 0, 30);
 374         XLineMessage = options->getString("xlinemessage", options->getString("moronbanner", "You're banned!"));
 375         ServerDesc = server->getString("description", "Configure Me");
 376         Network = server->getString("network", "Network");
 377         NetBufferSize = ConfValue("performance")->getInt("netbuffersize", 10240, 1024, 65534);
 378         CustomVersion = security->getString("customversion");
 379         HideBans = security->getBool("hidebans");
 380         HideServer = security->getString("hideserver", security->getString("hidewhois"));
 381         SyntaxHints = options->getBool("syntaxhints");
 382         FullHostInTopic = options->getBool("hostintopic");
 383         MaxTargets = security->getUInt("maxtargets", 20, 1, 31);
 384         DefaultModes = options->getString("defaultmodes", "not");
 385         PID = ConfValue("pid")->getString("file");
 386         MaxChans = ConfValue("channels")->getUInt("users", 20);
 387         OperMaxChans = ConfValue("channels")->getUInt("opers", 0);
 388         c_ipv4_range = ConfValue("cidr")->getUInt("ipv4clone", 32, 1, 32);
 389         c_ipv6_range = ConfValue("cidr")->getUInt("ipv6clone", 128, 1, 128);
 390         Limits = ServerLimits(ConfValue("limits"));
 391         Paths = ServerPaths(ConfValue("path"));
 392         NoSnoticeStack = options->getBool("nosnoticestack", false);
 393
 394         std::string defbind = options->getString("defaultbind");
 395         if (stdalgo::string::equalsci(defbind, "ipv4"))
 396         {
 397                 WildcardIPv6 = false;
 398         }
 399         else if (stdalgo::string::equalsci(defbind, "ipv6"))
 400         {
 401                 WildcardIPv6 = true;
 402         }
 403         else
 404         {
 405                 WildcardIPv6 = true;
 406                 int socktest = socket(AF_INET6, SOCK_STREAM, 0);
 407                 if (socktest < 0)
 408                         WildcardIPv6 = false;
 409                 else
 410                         SocketEngine::Close(socktest);
 411         }
 412
 413         ReadXLine(this, "badip", "ipmask", ServerInstance->XLines->GetFactory("Z"));
 414         ReadXLine(this, "badnick", "nick", ServerInstance->XLines->GetFactory("Q"));
 415         ReadXLine(this, "badhost", "host", ServerInstance->XLines->GetFactory("K"));
 416         ReadXLine(this, "exception", "host", ServerInstance->XLines->GetFactory("E"));
 417
 418         const std::string restrictbannedusers = options->getString("restrictbannedusers", "yes");
 419         if (stdalgo::string::equalsci(restrictbannedusers, "no"))
 420                 RestrictBannedUsers = ServerConfig::BUT_NORMAL;
 421         else if (stdalgo::string::equalsci(restrictbannedusers, "silent"))
 422                 RestrictBannedUsers = ServerConfig::BUT_RESTRICT_SILENT;
 423         else if (stdalgo::string::equalsci(restrictbannedusers, "yes"))
 424                 RestrictBannedUsers =  ServerConfig::BUT_RESTRICT_NOTIFY;
 425         else
 426                 throw CoreException(restrictbannedusers + " is an invalid <options:restrictbannedusers> value, at " + options->getTagLocation());
 427 }
 428
 429 // WARNING: it is not safe to use most of the codebase in this function, as it
 430 // will run in the config reader thread
 431 void ServerConfig::Read()
 432 {
 433         /* Load and parse the config file, if there are any errors then explode */
 434
 435         ParseStack stack(this);
 436         try
 437         {
 438                 valid = stack.ParseFile(ServerInstance->ConfigFileName, 0);
 439         }
 440         catch (CoreException& err)
 441         {
 442                 valid = false;
 443                 errstr << err.GetReason() << std::endl;
 444         }
 445 }
 446
 447 void ServerConfig::Apply(ServerConfig* old, const std::string &useruid)
 448 {
 449         valid = true;
 450         if (old)
 451         {
 452                 /*
 453                  * These values can only be set on boot. Keep their old values. Do it before we send messages so we actually have a servername.
 454                  */
 455                 this->CaseMapping = old->CaseMapping;
 456                 this->ServerName = old->ServerName;
 457                 this->sid = old->sid;
 458                 this->cmdline = old->cmdline;
 459         }
 460
 461         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 462         try
 463         {
 464                 // Ensure the user has actually edited ther config.
 465                 ConfigTagList dietags = ConfTags("die");
 466                 if (dietags.first != dietags.second)
 467                 {
 468                         errstr << "Your configuration has not been edited correctly!" << std::endl;
 469                         for (ConfigIter iter = dietags.first; iter != dietags.second; ++iter)
 470                         {
 471                                 ConfigTag* tag = iter->second;
 472                                 const std::string reason = tag->getString("reason", "You left a <die> tag in your config", 1);
 473                                 errstr << reason <<  " (at " << tag->getTagLocation() << ")" << std::endl;
 474                         }
 475                 }
 476
 477                 Fill();
 478
 479                 // Handle special items
 480                 CrossCheckOperClassType();
 481                 CrossCheckConnectBlocks(old);
 482         }
 483         catch (CoreException &ce)
 484         {
 485                 errstr << ce.GetReason() << std::endl;
 486         }
 487
 488         // Check errors before dealing with failed binds, since continuing on failed bind is wanted in some circumstances.
 489         valid = errstr.str().empty();
 490
 491         // write once here, to try it out and make sure its ok
 492         if (valid)
 493                 ServerInstance->WritePID(this->PID, !old);
 494
 495         ConfigTagList binds = ConfTags("bind");
 496         if (binds.first == binds.second)
 497                  errstr << "Possible configuration error: you have not defined any <bind> blocks." << std::endl
 498                          << "You will need to do this if you want clients to be able to connect!" << std::endl;
 499
 500         if (old && valid)
 501         {
 502                 // On first run, ports are bound later on
 503                 FailedPortList pl;
 504                 ServerInstance->BindPorts(pl);
 505                 if (pl.size())
 506                 {
 507                         errstr << "Not all your client ports could be bound." << std::endl
 508                                 << "The following port(s) failed to bind:" << std::endl;
 509
 510                         int j = 1;
 511                         for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 512                         {
 513                                 errstr << j << ".\tAddress: " << i->first.str() << "\tReason: " << strerror(i->second) << std::endl;
 514                         }
 515                 }
 516         }
 517
 518         User* user = useruid.empty() ? NULL : ServerInstance->FindNick(useruid);
 519
 520         if (!valid)
 521         {
 522                 ServerInstance->Logs->Log("CONFIG", LOG_DEFAULT, "There were errors in your configuration file:");
 523                 Classes.clear();
 524         }
 525
 526         while (errstr.good())
 527         {
 528                 std::string line;
 529                 getline(errstr, line, '\n');
 530                 if (line.empty())
 531                         continue;
 532                 // On startup, print out to console (still attached at this point)
 533                 if (!old)
 534                         std::cout << line << std::endl;
 535                 // If a user is rehashing, tell them directly
 536                 if (user)
 537                         user->WriteRemoteNotice(InspIRCd::Format("*** %s", line.c_str()));
 538                 // Also tell opers
 539                 ServerInstance->SNO->WriteGlobalSno('a', line);
 540         }
 541
 542         errstr.clear();
 543         errstr.str(std::string());
 544
 545         /* No old configuration -> initial boot, nothing more to do here */
 546         if (!old)
 547         {
 548                 if (!valid)
 549                 {
 550                         ServerInstance->Exit(EXIT_STATUS_CONFIG);
 551                 }
 552
 553                 return;
 554         }
 555
 556
 557         // If there were errors processing configuration, don't touch modules.
 558         if (!valid)
 559                 return;
 560
 561         ApplyModules(user);
 562
 563         if (user)
 564                 user->WriteRemoteNotice("*** Successfully rehashed server.");
 565         ServerInstance->SNO->WriteGlobalSno('a', "*** Successfully rehashed server.");
 566 }
 567
 568 void ServerConfig::ApplyModules(User* user)
 569 {
 570         std::vector<std::string> added_modules;
 571         ModuleManager::ModuleMap removed_modules = ServerInstance->Modules->GetModules();
 572
 573         ConfigTagList tags = ConfTags("module");
 574         for(ConfigIter i = tags.first; i != tags.second; ++i)
 575         {
 576                 ConfigTag* tag = i->second;
 577                 std::string name;
 578                 if (tag->readString("name", name))
 579                 {
 580                         name = ModuleManager::ExpandModName(name);
 581                         // if this module is already loaded, the erase will succeed, so we need do nothing
 582                         // otherwise, we need to add the module (which will be done later)
 583                         if (removed_modules.erase(name) == 0)
 584                                 added_modules.push_back(name);
 585                 }
 586         }
 587
 588         for (ModuleManager::ModuleMap::iterator i = removed_modules.begin(); i != removed_modules.end(); ++i)
 589         {
 590                 const std::string& modname = i->first;
 591                 // Don't remove core_*.so, just remove m_*.so
 592                 if (InspIRCd::Match(modname, "core_*.so", ascii_case_insensitive_map))
 593                         continue;
 594                 if (ServerInstance->Modules->Unload(i->second))
 595                 {
 596                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH UNLOADED MODULE: %s", modname.c_str());
 597
 598                         if (user)
 599                                 user->WriteNumeric(RPL_UNLOADEDMODULE, modname, InspIRCd::Format("Module %s successfully unloaded.", modname.c_str()));
 600                         else
 601                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully unloaded.", modname.c_str());
 602                 }
 603                 else
 604                 {
 605                         if (user)
 606                                 user->WriteNumeric(ERR_CANTUNLOADMODULE, modname, InspIRCd::Format("Failed to unload module %s: %s", modname.c_str(), ServerInstance->Modules->LastError().c_str()));
 607                         else
 608                                 ServerInstance->SNO->WriteGlobalSno('a', "Failed to unload module %s: %s", modname.c_str(), ServerInstance->Modules->LastError().c_str());
 609                 }
 610         }
 611
 612         for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 613         {
 614                 // Skip modules which are already loaded.
 615                 if (ServerInstance->Modules->Find(*adding))
 616                         continue;
 617
 618                 if (ServerInstance->Modules->Load(*adding))
 619                 {
 620                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH LOADED MODULE: %s",adding->c_str());
 621                         if (user)
 622                                 user->WriteNumeric(RPL_LOADEDMODULE, *adding, InspIRCd::Format("Module %s successfully loaded.", adding->c_str()));
 623                         else
 624                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully loaded.", adding->c_str());
 625                 }
 626                 else
 627                 {
 628                         if (user)
 629                                 user->WriteNumeric(ERR_CANTLOADMODULE, *adding, InspIRCd::Format("Failed to load module %s: %s", adding->c_str(), ServerInstance->Modules->LastError().c_str()));
 630                         else
 631                                 ServerInstance->SNO->WriteGlobalSno('a', "Failed to load module %s: %s", adding->c_str(), ServerInstance->Modules->LastError().c_str());
 632                 }
 633         }
 634 }
 635
 636 ConfigTag* ServerConfig::ConfValue(const std::string &tag)
 637 {
 638         ConfigTagList found = config_data.equal_range(tag);
 639         if (found.first == found.second)
 640                 return EmptyTag;
 641         ConfigTag* rv = found.first->second;
 642         found.first++;
 643         if (found.first != found.second)
 644                 ServerInstance->Logs->Log("CONFIG", LOG_DEFAULT, "Multiple <" + tag + "> tags found; only first will be used "
 645                         "(first at " + rv->getTagLocation() + "; second at " + found.first->second->getTagLocation() + ")");
 646         return rv;
 647 }
 648
 649 ConfigTagList ServerConfig::ConfTags(const std::string& tag)
 650 {
 651         return config_data.equal_range(tag);
 652 }
 653
 654 std::string ServerConfig::Escape(const std::string& str, bool xml)
 655 {
 656         std::string escaped;
 657         for (std::string::const_iterator it = str.begin(); it != str.end(); ++it)
 658         {
 659                 switch (*it)
 660                 {
 661                         case '"':
 662                                 escaped += xml ? "&quot;" : "\"";
 663                                 break;
 664                         case '&':
 665                                 escaped += xml ? "&amp;" : "&";
 666                                 break;
 667                         case '\\':
 668                                 escaped += xml ? "\\" : "\\\\";
 669                                 break;
 670                         default:
 671                                 escaped += *it;
 672                                 break;
 673                 }
 674         }
 675         return escaped;
 676 }
 677
 678 void ConfigReaderThread::Run()
 679 {
 680         Config->Read();
 681         done = true;
 682 }
 683
 684 void ConfigReaderThread::Finish()
 685 {
 686         ServerConfig* old = ServerInstance->Config;
 687         ServerInstance->Logs->Log("CONFIG", LOG_DEBUG, "Switching to new configuration...");
 688         ServerInstance->Config = this->Config;
 689         Config->Apply(old, TheUserUID);
 690
 691         if (Config->valid)
 692         {
 693                 /*
 694                  * Apply the changed configuration from the rehash.
 695                  *
 696                  * XXX: The order of these is IMPORTANT, do not reorder them without testing
 697                  * thoroughly!!!
 698                  */
 699                 ServerInstance->Users.RehashCloneCounts();
 700                 ServerInstance->XLines->CheckELines();
 701                 ServerInstance->XLines->ApplyLines();
 702                 User* user = ServerInstance->FindNick(TheUserUID);
 703
 704                 ConfigStatus status(user);
 705                 const ModuleManager::ModuleMap& mods = ServerInstance->Modules->GetModules();
 706                 for (ModuleManager::ModuleMap::const_iterator i = mods.begin(); i != mods.end(); ++i)
 707                 {
 708                         try
 709                         {
 710                                 ServerInstance->Logs->Log("MODULE", LOG_DEBUG, "Rehashing " + i->first);
 711                                 i->second->ReadConfig(status);
 712                         }
 713                         catch (CoreException& modex)
 714                         {
 715                                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "Exception caught: " + modex.GetReason());
 716                                 if (user)
 717                                         user->WriteNotice(i->first + ": " + modex.GetReason());
 718                         }
 719                 }
 720
 721                 // The description of this server may have changed - update it for WHOIS etc.
 722                 ServerInstance->FakeClient->server->description = Config->ServerDesc;
 723
 724                 ServerInstance->ISupport.Build();
 725
 726                 ServerInstance->Logs->CloseLogs();
 727                 ServerInstance->Logs->OpenFileLogs();
 728
 729                 if (Config->RawLog && !old->RawLog)
 730                         ServerInstance->Users->ServerNoticeAll("*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.");
 731
 732                 Config = old;
 733         }
 734         else
 735         {
 736                 // whoops, abort!
 737                 ServerInstance->Config = old;
 738         }
 739 }