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 ServerConfig::ServerConfig()
  33 {
  34         RawLog = HideBans = HideSplits = UndernetMsgPrefix = false;
  35         WildcardIPv6 = InvBypassModes = true;
  36         dns_timeout = 5;
  37         MaxTargets = 20;
  38         NetBufferSize = 10240;
  39         MaxConn = SOMAXCONN;
  40         MaxChans = 20;
  41         OperMaxChans = 30;
  42         c_ipv4_range = 32;
  43         c_ipv6_range = 128;
  44 }
  45
  46 static void ValidHost(const std::string& p, const std::string& msg)
  47 {
  48         int num_dots = 0;
  49         if (p.empty() || p[0] == '.')
  50                 throw CoreException("The value of "+msg+" is not a valid hostname");
  51         for (unsigned int i=0;i < p.length();i++)
  52         {
  53                 switch (p[i])
  54                 {
  55                         case ' ':
  56                                 throw CoreException("The value of "+msg+" is not a valid hostname");
  57                         case '.':
  58                                 num_dots++;
  59                         break;
  60                 }
  61         }
  62         if (num_dots == 0)
  63                 throw CoreException("The value of "+msg+" is not a valid hostname");
  64 }
  65
  66 bool ServerConfig::ApplyDisabledCommands(const std::string& data)
  67 {
  68         std::stringstream dcmds(data);
  69         std::string thiscmd;
  70
  71         /* Enable everything first */
  72         const CommandParser::CommandMap& commands = ServerInstance->Parser->GetCommands();
  73         for (CommandParser::CommandMap::const_iterator x = commands.begin(); x != commands.end(); ++x)
  74                 x->second->Disable(false);
  75
  76         /* Now disable all the ones which the user wants disabled */
  77         while (dcmds >> thiscmd)
  78         {
  79                 Command* handler = ServerInstance->Parser->GetHandler(thiscmd);
  80                 if (handler)
  81                         handler->Disable(true);
  82         }
  83         return true;
  84 }
  85
  86 static void ReadXLine(ServerConfig* conf, const std::string& tag, const std::string& key, XLineFactory* make)
  87 {
  88         ConfigTagList tags = conf->ConfTags(tag);
  89         for(ConfigIter i = tags.first; i != tags.second; ++i)
  90         {
  91                 ConfigTag* ctag = i->second;
  92                 std::string mask;
  93                 if (!ctag->readString(key, mask))
  94                         throw CoreException("<"+tag+":"+key+"> missing at " + ctag->getTagLocation());
  95                 std::string reason = ctag->getString("reason", "<Config>");
  96                 XLine* xl = make->Generate(ServerInstance->Time(), 0, "<Config>", reason, mask);
  97                 if (!ServerInstance->XLines->AddLine(xl, NULL))
  98                         delete xl;
  99         }
 100 }
 101
 102 typedef std::map<std::string, ConfigTag*> LocalIndex;
 103 void ServerConfig::CrossCheckOperClassType()
 104 {
 105         LocalIndex operclass;
 106         ConfigTagList tags = ConfTags("class");
 107         for(ConfigIter i = tags.first; i != tags.second; ++i)
 108         {
 109                 ConfigTag* tag = i->second;
 110                 std::string name = tag->getString("name");
 111                 if (name.empty())
 112                         throw CoreException("<class:name> missing from tag at " + tag->getTagLocation());
 113                 if (operclass.find(name) != operclass.end())
 114                         throw CoreException("Duplicate class block with name " + name + " at " + tag->getTagLocation());
 115                 operclass[name] = tag;
 116         }
 117         tags = ConfTags("type");
 118         for(ConfigIter i = tags.first; i != tags.second; ++i)
 119         {
 120                 ConfigTag* tag = i->second;
 121                 std::string name = tag->getString("name");
 122                 if (name.empty())
 123                         throw CoreException("<type:name> is missing from tag at " + tag->getTagLocation());
 124                 if (OperTypes.find(name) != OperTypes.end())
 125                         throw CoreException("Duplicate type block with name " + name + " at " + tag->getTagLocation());
 126
 127                 OperInfo* ifo = new OperInfo;
 128                 OperTypes[name] = ifo;
 129                 ifo->name = name;
 130                 ifo->type_block = tag;
 131
 132                 std::string classname;
 133                 irc::spacesepstream str(tag->getString("classes"));
 134                 while (str.GetToken(classname))
 135                 {
 136                         LocalIndex::iterator cls = operclass.find(classname);
 137                         if (cls == operclass.end())
 138                                 throw CoreException("Oper type " + name + " has missing class " + classname);
 139                         ifo->class_blocks.push_back(cls->second);
 140                 }
 141         }
 142
 143         tags = ConfTags("oper");
 144         for(ConfigIter i = tags.first; i != tags.second; ++i)
 145         {
 146                 ConfigTag* tag = i->second;
 147
 148                 std::string name = tag->getString("name");
 149                 if (name.empty())
 150                         throw CoreException("<oper:name> missing from tag at " + tag->getTagLocation());
 151
 152                 std::string type = tag->getString("type");
 153                 OperIndex::iterator tblk = OperTypes.find(type);
 154                 if (tblk == OperTypes.end())
 155                         throw CoreException("Oper block " + name + " has missing type " + type);
 156                 if (oper_blocks.find(name) != oper_blocks.end())
 157                         throw CoreException("Duplicate oper block with name " + name + " at " + tag->getTagLocation());
 158
 159                 OperInfo* ifo = new OperInfo;
 160                 ifo->name = type;
 161                 ifo->oper_block = tag;
 162                 ifo->type_block = tblk->second->type_block;
 163                 ifo->class_blocks.assign(tblk->second->class_blocks.begin(), tblk->second->class_blocks.end());
 164                 oper_blocks[name] = ifo;
 165         }
 166 }
 167
 168 void ServerConfig::CrossCheckConnectBlocks(ServerConfig* current)
 169 {
 170         typedef std::map<std::string, ConnectClass*> ClassMap;
 171         ClassMap oldBlocksByMask;
 172         if (current)
 173         {
 174                 for(ClassVector::iterator i = current->Classes.begin(); i != current->Classes.end(); ++i)
 175                 {
 176                         ConnectClass* c = *i;
 177                         if (c->name.compare(0, 8, "unnamed-", 8))
 178                         {
 179                                 oldBlocksByMask["n" + c->name] = c;
 180                         }
 181                         else if (c->type == CC_ALLOW || c->type == CC_DENY)
 182                         {
 183                                 std::string typeMask = (c->type == CC_ALLOW) ? "a" : "d";
 184                                 typeMask += c->host;
 185                                 oldBlocksByMask[typeMask] = c;
 186                         }
 187                 }
 188         }
 189
 190         int blk_count = config_data.count("connect");
 191         if (blk_count == 0)
 192         {
 193                 // No connect blocks found; make a trivial default block
 194                 std::vector<KeyVal>* items;
 195                 ConfigTag* tag = ConfigTag::create("connect", "<auto>", 0, items);
 196                 items->push_back(std::make_pair("allow", "*"));
 197                 config_data.insert(std::make_pair("connect", tag));
 198                 blk_count = 1;
 199         }
 200
 201         Classes.resize(blk_count);
 202         std::map<std::string, int> names;
 203
 204         bool try_again = true;
 205         for(int tries=0; try_again; tries++)
 206         {
 207                 try_again = false;
 208                 ConfigTagList tags = ConfTags("connect");
 209                 int i=0;
 210                 for(ConfigIter it = tags.first; it != tags.second; ++it, ++i)
 211                 {
 212                         ConfigTag* tag = it->second;
 213                         if (Classes[i])
 214                                 continue;
 215
 216                         ConnectClass* parent = NULL;
 217                         std::string parentName = tag->getString("parent");
 218                         if (!parentName.empty())
 219                         {
 220                                 std::map<std::string,int>::iterator parentIter = names.find(parentName);
 221                                 if (parentIter == names.end())
 222                                 {
 223                                         try_again = true;
 224                                         // couldn't find parent this time. If it's the last time, we'll never find it.
 225                                         if (tries >= blk_count)
 226                                                 throw CoreException("Could not find parent connect class \"" + parentName + "\" for connect block at " + tag->getTagLocation());
 227                                         continue;
 228                                 }
 229                                 parent = Classes[parentIter->second];
 230                         }
 231
 232                         std::string name = tag->getString("name");
 233                         std::string mask, typeMask;
 234                         char type;
 235
 236                         if (tag->readString("allow", mask, false))
 237                         {
 238                                 type = CC_ALLOW;
 239                                 typeMask = 'a' + mask;
 240                         }
 241                         else if (tag->readString("deny", mask, false))
 242                         {
 243                                 type = CC_DENY;
 244                                 typeMask = 'd' + mask;
 245                         }
 246                         else if (!name.empty())
 247                         {
 248                                 type = CC_NAMED;
 249                                 mask = name;
 250                                 typeMask = 'n' + mask;
 251                         }
 252                         else
 253                         {
 254                                 throw CoreException("Connect class must have allow, deny, or name specified at " + tag->getTagLocation());
 255                         }
 256
 257                         if (name.empty())
 258                         {
 259                                 name = "unnamed-" + ConvToStr(i);
 260                         }
 261                         else
 262                         {
 263                                 typeMask = 'n' + name;
 264                         }
 265
 266                         if (names.find(name) != names.end())
 267                                 throw CoreException("Two connect classes with name \"" + name + "\" defined!");
 268                         names[name] = i;
 269
 270                         ConnectClass* me = parent ?
 271                                 new ConnectClass(tag, type, mask, *parent) :
 272                                 new ConnectClass(tag, type, mask);
 273
 274                         me->name = name;
 275
 276                         me->registration_timeout = tag->getInt("timeout", me->registration_timeout);
 277                         me->pingtime = tag->getInt("pingfreq", me->pingtime);
 278                         std::string sendq;
 279                         if (tag->readString("sendq", sendq))
 280                         {
 281                                 // attempt to guess a good hard/soft sendq from a single value
 282                                 long value = atol(sendq.c_str());
 283                                 if (value > 16384)
 284                                         me->softsendqmax = value / 16;
 285                                 else
 286                                         me->softsendqmax = value;
 287                                 me->hardsendqmax = value * 8;
 288                         }
 289                         me->softsendqmax = tag->getInt("softsendq", me->softsendqmax);
 290                         me->hardsendqmax = tag->getInt("hardsendq", me->hardsendqmax);
 291                         me->recvqmax = tag->getInt("recvq", me->recvqmax);
 292                         me->penaltythreshold = tag->getInt("threshold", me->penaltythreshold);
 293                         me->commandrate = tag->getInt("commandrate", me->commandrate);
 294                         me->fakelag = tag->getBool("fakelag", me->fakelag);
 295                         me->maxlocal = tag->getInt("localmax", me->maxlocal);
 296                         me->maxglobal = tag->getInt("globalmax", me->maxglobal);
 297                         me->maxchans = tag->getInt("maxchans", me->maxchans);
 298                         me->maxconnwarn = tag->getBool("maxconnwarn", me->maxconnwarn);
 299                         me->limit = tag->getInt("limit", me->limit);
 300                         me->resolvehostnames = tag->getBool("resolvehostnames", me->resolvehostnames);
 301
 302                         ClassMap::iterator oldMask = oldBlocksByMask.find(typeMask);
 303                         if (oldMask != oldBlocksByMask.end())
 304                         {
 305                                 ConnectClass* old = oldMask->second;
 306                                 oldBlocksByMask.erase(oldMask);
 307                                 old->Update(me);
 308                                 delete me;
 309                                 me = old;
 310                         }
 311                         Classes[i] = me;
 312                 }
 313         }
 314 }
 315
 316 /** Represents a deprecated configuration tag.
 317  */
 318 struct DeprecatedConfig
 319 {
 320         /** Tag name. */
 321         std::string tag;
 322
 323         /** Attribute key. */
 324         std::string key;
 325
 326         /** Attribute value. */
 327         std::string value;
 328
 329         /** Reason for deprecation. */
 330         std::string reason;
 331 };
 332
 333 static const DeprecatedConfig ChangedConfig[] = {
 334         { "bind",        "transport",   "",                 "has been moved to <bind:ssl> as of 2.0" },
 335         { "die",         "value",       "",                 "you need to reread your config" },
 336         { "gnutls",      "starttls",    "",                 "has been replaced with m_starttls as of 2.2" },
 337         { "link",        "autoconnect", "",                 "2.0+ does not use this attribute - define <autoconnect> tags instead" },
 338         { "link",        "transport",   "",                 "has been moved to <link:ssl> as of 2.0" },
 339         { "module",      "name",        "m_chanprotect.so", "has been replaced with m_customprefix as of 2.2" },
 340         { "module",      "name",        "m_halfop.so",      "has been replaced with m_customprefix as of 2.2" },
 341         { "options",     "cyclehosts",  "",                 "has been replaced with m_hostcycle as of 2.2" },
 342         { "performance", "nouserdns",   "",                 "has been moved to <connect:resolvehostnames> as of 2.2" }
 343 };
 344
 345 void ServerConfig::Fill()
 346 {
 347         ConfigTag* options = ConfValue("options");
 348         ConfigTag* security = ConfValue("security");
 349         if (sid.empty())
 350         {
 351                 ServerName = ConfValue("server")->getString("name", "irc.example.com");
 352                 ValidHost(ServerName, "<server:name>");
 353
 354                 sid = ConfValue("server")->getString("id");
 355                 if (!sid.empty() && !InspIRCd::IsSID(sid))
 356                         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.");
 357         }
 358         else
 359         {
 360                 if (ServerName != ConfValue("server")->getString("name"))
 361                         throw CoreException("You must restart to change the server name");
 362
 363                 std::string nsid = ConfValue("server")->getString("id");
 364                 if (!nsid.empty() && nsid != sid)
 365                         throw CoreException("You must restart to change the server id");
 366         }
 367         SoftLimit = ConfValue("performance")->getInt("softlimit", (SocketEngine::GetMaxFds() > 0 ? SocketEngine::GetMaxFds() : LONG_MAX), 10);
 368         CCOnConnect = ConfValue("performance")->getBool("clonesonconnect", true);
 369         MaxConn = ConfValue("performance")->getInt("somaxconn", SOMAXCONN);
 370         XLineMessage = options->getString("xlinemessage", options->getString("moronbanner", "You're banned!"));
 371         ServerDesc = ConfValue("server")->getString("description", "Configure Me");
 372         Network = ConfValue("server")->getString("network", "Network");
 373         NetBufferSize = ConfValue("performance")->getInt("netbuffersize", 10240, 1024, 65534);
 374         dns_timeout = ConfValue("dns")->getInt("timeout", 5);
 375         DisabledCommands = ConfValue("disabled")->getString("commands", "");
 376         DisabledDontExist = ConfValue("disabled")->getBool("fakenonexistant");
 377         UserStats = security->getString("userstats");
 378         CustomVersion = security->getString("customversion");
 379         HideSplits = security->getBool("hidesplits");
 380         HideBans = security->getBool("hidebans");
 381         HideWhoisServer = security->getString("hidewhois");
 382         HideKillsServer = security->getString("hidekills");
 383         RestrictBannedUsers = security->getBool("restrictbannedusers", true);
 384         GenericOper = security->getBool("genericoper");
 385         SyntaxHints = options->getBool("syntaxhints");
 386         CycleHostsFromUser = options->getBool("cyclehostsfromuser");
 387         UndernetMsgPrefix = options->getBool("ircumsgprefix");
 388         FullHostInTopic = options->getBool("hostintopic");
 389         MaxTargets = security->getInt("maxtargets", 20, 1, 31);
 390         DefaultModes = options->getString("defaultmodes", "not");
 391         PID = ConfValue("pid")->getString("file");
 392         MaxChans = ConfValue("channels")->getInt("users", 20);
 393         OperMaxChans = ConfValue("channels")->getInt("opers");
 394         c_ipv4_range = ConfValue("cidr")->getInt("ipv4clone", 32);
 395         c_ipv6_range = ConfValue("cidr")->getInt("ipv6clone", 128);
 396         Limits.NickMax = ConfValue("limits")->getInt("maxnick", 32);
 397         Limits.ChanMax = ConfValue("limits")->getInt("maxchan", 64);
 398         Limits.MaxModes = ConfValue("limits")->getInt("maxmodes", 20);
 399         Limits.IdentMax = ConfValue("limits")->getInt("maxident", 11);
 400         Limits.MaxHost = ConfValue("limits")->getInt("maxhost", 64);
 401         Limits.MaxQuit = ConfValue("limits")->getInt("maxquit", 255);
 402         Limits.MaxTopic = ConfValue("limits")->getInt("maxtopic", 307);
 403         Limits.MaxKick = ConfValue("limits")->getInt("maxkick", 255);
 404         Limits.MaxGecos = ConfValue("limits")->getInt("maxgecos", 128);
 405         Limits.MaxAway = ConfValue("limits")->getInt("maxaway", 200);
 406         Limits.MaxLine = ConfValue("limits")->getInt("maxline", 512);
 407         Paths.Config = ConfValue("path")->getString("configdir", INSPIRCD_CONFIG_PATH);
 408         Paths.Data = ConfValue("path")->getString("datadir", INSPIRCD_DATA_PATH);
 409         Paths.Log = ConfValue("path")->getString("logdir", INSPIRCD_LOG_PATH);
 410         Paths.Module = ConfValue("path")->getString("moduledir", INSPIRCD_MODULE_PATH);
 411         InvBypassModes = options->getBool("invitebypassmodes", true);
 412         NoSnoticeStack = options->getBool("nosnoticestack", false);
 413
 414         if (Network.find(' ') != std::string::npos)
 415                 throw CoreException(Network + " is not a valid network name. A network name must not contain spaces.");
 416
 417         std::string defbind = options->getString("defaultbind");
 418         if (assign(defbind) == "ipv4")
 419         {
 420                 WildcardIPv6 = false;
 421         }
 422         else if (assign(defbind) == "ipv6")
 423         {
 424                 WildcardIPv6 = true;
 425         }
 426         else
 427         {
 428                 WildcardIPv6 = true;
 429                 int socktest = socket(AF_INET6, SOCK_STREAM, 0);
 430                 if (socktest < 0)
 431                         WildcardIPv6 = false;
 432                 else
 433                         SocketEngine::Close(socktest);
 434         }
 435
 436         ReadXLine(this, "badip", "ipmask", ServerInstance->XLines->GetFactory("Z"));
 437         ReadXLine(this, "badnick", "nick", ServerInstance->XLines->GetFactory("Q"));
 438         ReadXLine(this, "badhost", "host", ServerInstance->XLines->GetFactory("K"));
 439         ReadXLine(this, "exception", "host", ServerInstance->XLines->GetFactory("E"));
 440
 441         memset(DisabledUModes, 0, sizeof(DisabledUModes));
 442         std::string modes = ConfValue("disabled")->getString("usermodes");
 443         for (std::string::const_iterator p = modes.begin(); p != modes.end(); ++p)
 444         {
 445                 // Complain when the character is not a-z or A-Z
 446                 if ((*p < 'A') || (*p > 'z') || ((*p < 'a') && (*p > 'Z')))
 447                         throw CoreException("Invalid usermode " + std::string(1, *p) + " was found.");
 448                 DisabledUModes[*p - 'A'] = 1;
 449         }
 450
 451         memset(DisabledCModes, 0, sizeof(DisabledCModes));
 452         modes = ConfValue("disabled")->getString("chanmodes");
 453         for (std::string::const_iterator p = modes.begin(); p != modes.end(); ++p)
 454         {
 455                 if ((*p < 'A') || (*p > 'z') || ((*p < 'a') && (*p > 'Z')))
 456                         throw CoreException("Invalid chanmode " + std::string(1, *p) + " was found.");
 457                 DisabledCModes[*p - 'A'] = 1;
 458         }
 459
 460         memset(HideModeLists, 0, sizeof(HideModeLists));
 461         modes = ConfValue("security")->getString("hidemodes");
 462         for (std::string::const_iterator p = modes.begin(); p != modes.end(); ++p)
 463                 HideModeLists[(unsigned char) *p] = true;
 464
 465         std::string v = security->getString("announceinvites");
 466
 467         if (v == "ops")
 468                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_OPS;
 469         else if (v == "all")
 470                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_ALL;
 471         else if (v == "dynamic")
 472                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_DYNAMIC;
 473         else
 474                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_NONE;
 475
 476         v = security->getString("operspywhois");
 477         if (v == "splitmsg")
 478                 OperSpyWhois = SPYWHOIS_SPLITMSG;
 479         else if (v == "on" || v == "yes")
 480                 OperSpyWhois = SPYWHOIS_SINGLEMSG;
 481         else
 482                 OperSpyWhois = SPYWHOIS_NONE;
 483 }
 484
 485 // WARNING: it is not safe to use most of the codebase in this function, as it
 486 // will run in the config reader thread
 487 void ServerConfig::Read()
 488 {
 489         /* Load and parse the config file, if there are any errors then explode */
 490
 491         ParseStack stack(this);
 492         try
 493         {
 494                 valid = stack.ParseFile(ServerInstance->ConfigFileName, 0);
 495         }
 496         catch (CoreException& err)
 497         {
 498                 valid = false;
 499                 errstr << err.GetReason() << std::endl;
 500         }
 501 }
 502
 503 void ServerConfig::Apply(ServerConfig* old, const std::string &useruid)
 504 {
 505         valid = true;
 506         if (old)
 507         {
 508                 /*
 509                  * These values can only be set on boot. Keep their old values. Do it before we send messages so we actually have a servername.
 510                  */
 511                 this->ServerName = old->ServerName;
 512                 this->sid = old->sid;
 513                 this->cmdline = old->cmdline;
 514         }
 515
 516         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 517         try
 518         {
 519                 for (int index = 0; index * sizeof(DeprecatedConfig) < sizeof(ChangedConfig); index++)
 520                 {
 521                         std::string value;
 522                         ConfigTagList tags = ConfTags(ChangedConfig[index].tag);
 523                         for(ConfigIter i = tags.first; i != tags.second; ++i)
 524                         {
 525                                 if (i->second->readString(ChangedConfig[index].key, value, true)
 526                                         && (ChangedConfig[index].value.empty() || value == ChangedConfig[index].value))
 527                                 {
 528                                         errstr << "Your configuration contains a deprecated value: <"  << ChangedConfig[index].tag;
 529                                         if (ChangedConfig[index].value.empty())
 530                                         {
 531                                                 errstr << ':' << ChangedConfig[index].key;
 532                                         }
 533                                         else
 534                                         {
 535                                                 errstr << ' ' << ChangedConfig[index].key << "=\"" << ChangedConfig[index].value << "\"";
 536                                         }
 537                                         errstr << "> - " << ChangedConfig[index].reason << " (at " << i->second->getTagLocation() << ")" << std::endl;
 538                                 }
 539                         }
 540                 }
 541
 542                 Fill();
 543
 544                 // Handle special items
 545                 CrossCheckOperClassType();
 546                 CrossCheckConnectBlocks(old);
 547         }
 548         catch (CoreException &ce)
 549         {
 550                 errstr << ce.GetReason();
 551         }
 552
 553         // Check errors before dealing with failed binds, since continuing on failed bind is wanted in some circumstances.
 554         valid = errstr.str().empty();
 555
 556         // write once here, to try it out and make sure its ok
 557         if (valid)
 558                 ServerInstance->WritePID(this->PID);
 559
 560         ConfigTagList binds = ConfTags("bind");
 561         if (binds.first == binds.second)
 562                  errstr << "Possible configuration error: you have not defined any <bind> blocks." << std::endl
 563                          << "You will need to do this if you want clients to be able to connect!" << std::endl;
 564
 565         if (old)
 566         {
 567                 // On first run, ports are bound later on
 568                 FailedPortList pl;
 569                 ServerInstance->BindPorts(pl);
 570                 if (pl.size())
 571                 {
 572                         errstr << "Not all your client ports could be bound." << std::endl
 573                                 << "The following port(s) failed to bind:" << std::endl;
 574
 575                         int j = 1;
 576                         for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 577                         {
 578                                 errstr << j << ".\tAddress: " << (i->first.empty() ? "<all>" : i->first.c_str()) << "\tReason: "
 579                                         << i->second << std::endl;
 580                         }
 581                 }
 582         }
 583
 584         User* user = useruid.empty() ? NULL : ServerInstance->FindNick(useruid);
 585
 586         if (!valid)
 587         {
 588                 ServerInstance->Logs->Log("CONFIG", LOG_DEFAULT, "There were errors in your configuration file:");
 589                 Classes.clear();
 590         }
 591
 592         while (errstr.good())
 593         {
 594                 std::string line;
 595                 getline(errstr, line, '\n');
 596                 if (line.empty())
 597                         continue;
 598                 // On startup, print out to console (still attached at this point)
 599                 if (!old)
 600                         std::cout << line << std::endl;
 601                 // If a user is rehashing, tell them directly
 602                 if (user)
 603                         user->SendText(":%s NOTICE %s :*** %s", ServerInstance->Config->ServerName.c_str(), user->nick.c_str(), line.c_str());
 604                 // Also tell opers
 605                 ServerInstance->SNO->WriteGlobalSno('a', line);
 606         }
 607
 608         errstr.clear();
 609         errstr.str(std::string());
 610
 611         // Re-parse our MOTD and RULES files for colors -- Justasic
 612         for (ClassVector::const_iterator it = this->Classes.begin(), it_end = this->Classes.end(); it != it_end; ++it)
 613         {
 614                 ConfigTag *tag = (*it)->config;
 615                 // Make sure our connection class allows motd colors
 616                 if(!tag->getBool("allowmotdcolors"))
 617                       continue;
 618
 619                 ConfigFileCache::iterator file = this->Files.find(tag->getString("motd", "motd"));
 620                 if (file != this->Files.end())
 621                       InspIRCd::ProcessColors(file->second);
 622         }
 623
 624         /* No old configuration -> initial boot, nothing more to do here */
 625         if (!old)
 626         {
 627                 if (!valid)
 628                 {
 629                         ServerInstance->Exit(EXIT_STATUS_CONFIG);
 630                 }
 631
 632                 return;
 633         }
 634
 635
 636         // If there were errors processing configuration, don't touch modules.
 637         if (!valid)
 638                 return;
 639
 640         ApplyModules(user);
 641
 642         if (user)
 643                 user->SendText(":%s NOTICE %s :*** Successfully rehashed server.",
 644                         ServerInstance->Config->ServerName.c_str(), user->nick.c_str());
 645         ServerInstance->SNO->WriteGlobalSno('a', "*** Successfully rehashed server.");
 646 }
 647
 648 void ServerConfig::ApplyModules(User* user)
 649 {
 650         std::vector<std::string> added_modules;
 651         ModuleManager::ModuleMap removed_modules = ServerInstance->Modules->GetModules();
 652
 653         ConfigTagList tags = ConfTags("module");
 654         for(ConfigIter i = tags.first; i != tags.second; ++i)
 655         {
 656                 ConfigTag* tag = i->second;
 657                 std::string name;
 658                 if (tag->readString("name", name))
 659                 {
 660                         // if this module is already loaded, the erase will succeed, so we need do nothing
 661                         // otherwise, we need to add the module (which will be done later)
 662                         if (removed_modules.erase(name) == 0)
 663                                 added_modules.push_back(name);
 664                 }
 665         }
 666
 667         for (ModuleManager::ModuleMap::iterator i = removed_modules.begin(); i != removed_modules.end(); ++i)
 668         {
 669                 const std::string& modname = i->first;
 670                 // Don't remove core_*.so, just remove m_*.so
 671                 if (modname.c_str()[0] == 'c')
 672                         continue;
 673                 if (ServerInstance->Modules->Unload(i->second))
 674                 {
 675                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH UNLOADED MODULE: %s", modname.c_str());
 676
 677                         if (user)
 678                                 user->WriteNumeric(RPL_UNLOADEDMODULE, "%s :Module %s successfully unloaded.", modname.c_str(), modname.c_str());
 679                         else
 680                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully unloaded.", modname.c_str());
 681                 }
 682                 else
 683                 {
 684                         if (user)
 685                                 user->WriteNumeric(ERR_CANTUNLOADMODULE, "%s :Failed to unload module %s: %s", modname.c_str(), modname.c_str(), ServerInstance->Modules->LastError().c_str());
 686                         else
 687                                  ServerInstance->SNO->WriteGlobalSno('a', "Failed to unload module %s: %s", modname.c_str(), ServerInstance->Modules->LastError().c_str());
 688                 }
 689         }
 690
 691         for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 692         {
 693                 if (ServerInstance->Modules->Load(adding->c_str()))
 694                 {
 695                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH LOADED MODULE: %s",adding->c_str());
 696                         if (user)
 697                                 user->WriteNumeric(RPL_LOADEDMODULE, "%s :Module %s successfully loaded.", adding->c_str(), adding->c_str());
 698                         else
 699                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully loaded.", adding->c_str());
 700                 }
 701                 else
 702                 {
 703                         if (user)
 704                                 user->WriteNumeric(ERR_CANTLOADMODULE, "%s :Failed to load module %s: %s", adding->c_str(), adding->c_str(), ServerInstance->Modules->LastError().c_str());
 705                         else
 706                                 ServerInstance->SNO->WriteGlobalSno('a', "Failed to load module %s: %s", adding->c_str(), ServerInstance->Modules->LastError().c_str());
 707                 }
 708         }
 709 }
 710
 711 ConfigTag* ServerConfig::ConfValue(const std::string &tag)
 712 {
 713         ConfigTagList found = config_data.equal_range(tag);
 714         if (found.first == found.second)
 715                 return NULL;
 716         ConfigTag* rv = found.first->second;
 717         found.first++;
 718         if (found.first != found.second)
 719                 ServerInstance->Logs->Log("CONFIG", LOG_DEFAULT, "Multiple <" + tag + "> tags found; only first will be used "
 720                         "(first at " + rv->getTagLocation() + "; second at " + found.first->second->getTagLocation() + ")");
 721         return rv;
 722 }
 723
 724 ConfigTagList ServerConfig::ConfTags(const std::string& tag)
 725 {
 726         return config_data.equal_range(tag);
 727 }
 728
 729 std::string ServerConfig::Escape(const std::string& str, bool xml)
 730 {
 731         std::string escaped;
 732         for (std::string::const_iterator it = str.begin(); it != str.end(); ++it)
 733         {
 734                 switch (*it)
 735                 {
 736                         case '"':
 737                                 escaped += xml ? "&quot;" : "\"";
 738                                 break;
 739                         case '&':
 740                                 escaped += xml ? "&amp;" : "&";
 741                                 break;
 742                         case '\\':
 743                                 escaped += xml ? "\\" : "\\\\";
 744                                 break;
 745                         default:
 746                                 escaped += *it;
 747                                 break;
 748                 }
 749         }
 750         return escaped;
 751 }
 752
 753 void ConfigReaderThread::Run()
 754 {
 755         Config->Read();
 756         done = true;
 757 }
 758
 759 void ConfigReaderThread::Finish()
 760 {
 761         ServerConfig* old = ServerInstance->Config;
 762         ServerInstance->Logs->Log("CONFIG", LOG_DEBUG, "Switching to new configuration...");
 763         ServerInstance->Config = this->Config;
 764         Config->Apply(old, TheUserUID);
 765
 766         if (Config->valid)
 767         {
 768                 /*
 769                  * Apply the changed configuration from the rehash.
 770                  *
 771                  * XXX: The order of these is IMPORTANT, do not reorder them without testing
 772                  * thoroughly!!!
 773                  */
 774                 ServerInstance->XLines->CheckELines();
 775                 ServerInstance->XLines->ApplyLines();
 776                 ChanModeReference ban(NULL, "ban");
 777                 static_cast<ListModeBase*>(*ban)->DoRehash();
 778                 Config->ApplyDisabledCommands(Config->DisabledCommands);
 779                 User* user = ServerInstance->FindNick(TheUserUID);
 780
 781                 ConfigStatus status(user);
 782                 const ModuleManager::ModuleMap& mods = ServerInstance->Modules->GetModules();
 783                 for (ModuleManager::ModuleMap::const_iterator i = mods.begin(); i != mods.end(); ++i)
 784                         i->second->ReadConfig(status);
 785
 786                 ServerInstance->ISupport.Build();
 787
 788                 ServerInstance->Logs->CloseLogs();
 789                 ServerInstance->Logs->OpenFileLogs();
 790
 791                 if (Config->RawLog && !old->RawLog)
 792                         ServerInstance->Users->ServerNoticeAll("*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.");
 793
 794                 Config = old;
 795         }
 796         else
 797         {
 798                 // whoops, abort!
 799                 ServerInstance->Config = old;
 800         }
 801 }