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         std::vector<KeyVal>* items;
  46         EmptyTag = ConfigTag::create("empty", "<auto>", 0, items);
  47 }
  48
  49 ServerConfig::~ServerConfig()
  50 {
  51         delete EmptyTag;
  52 }
  53
  54 static void ValidHost(const std::string& p, const std::string& msg)
  55 {
  56         int num_dots = 0;
  57         if (p.empty() || p[0] == '.')
  58                 throw CoreException("The value of "+msg+" is not a valid hostname");
  59         for (unsigned int i=0;i < p.length();i++)
  60         {
  61                 switch (p[i])
  62                 {
  63                         case ' ':
  64                                 throw CoreException("The value of "+msg+" is not a valid hostname");
  65                         case '.':
  66                                 num_dots++;
  67                         break;
  68                 }
  69         }
  70         if (num_dots == 0)
  71                 throw CoreException("The value of "+msg+" is not a valid hostname");
  72 }
  73
  74 bool ServerConfig::ApplyDisabledCommands(const std::string& data)
  75 {
  76         std::stringstream dcmds(data);
  77         std::string thiscmd;
  78
  79         /* Enable everything first */
  80         const CommandParser::CommandMap& commands = ServerInstance->Parser.GetCommands();
  81         for (CommandParser::CommandMap::const_iterator x = commands.begin(); x != commands.end(); ++x)
  82                 x->second->Disable(false);
  83
  84         /* Now disable all the ones which the user wants disabled */
  85         while (dcmds >> thiscmd)
  86         {
  87                 Command* handler = ServerInstance->Parser.GetHandler(thiscmd);
  88                 if (handler)
  89                         handler->Disable(true);
  90         }
  91         return true;
  92 }
  93
  94 static void ReadXLine(ServerConfig* conf, const std::string& tag, const std::string& key, XLineFactory* make)
  95 {
  96         ConfigTagList tags = conf->ConfTags(tag);
  97         for(ConfigIter i = tags.first; i != tags.second; ++i)
  98         {
  99                 ConfigTag* ctag = i->second;
 100                 std::string mask;
 101                 if (!ctag->readString(key, mask))
 102                         throw CoreException("<"+tag+":"+key+"> missing at " + ctag->getTagLocation());
 103                 std::string reason = ctag->getString("reason", "<Config>");
 104                 XLine* xl = make->Generate(ServerInstance->Time(), 0, "<Config>", reason, mask);
 105                 if (!ServerInstance->XLines->AddLine(xl, NULL))
 106                         delete xl;
 107         }
 108 }
 109
 110 typedef std::map<std::string, ConfigTag*> LocalIndex;
 111 void ServerConfig::CrossCheckOperClassType()
 112 {
 113         LocalIndex operclass;
 114         ConfigTagList tags = ConfTags("class");
 115         for(ConfigIter i = tags.first; i != tags.second; ++i)
 116         {
 117                 ConfigTag* tag = i->second;
 118                 std::string name = tag->getString("name");
 119                 if (name.empty())
 120                         throw CoreException("<class:name> missing from tag at " + tag->getTagLocation());
 121                 if (operclass.find(name) != operclass.end())
 122                         throw CoreException("Duplicate class block with name " + name + " at " + tag->getTagLocation());
 123                 operclass[name] = tag;
 124         }
 125         tags = ConfTags("type");
 126         for(ConfigIter i = tags.first; i != tags.second; ++i)
 127         {
 128                 ConfigTag* tag = i->second;
 129                 std::string name = tag->getString("name");
 130                 if (name.empty())
 131                         throw CoreException("<type:name> is missing from tag at " + tag->getTagLocation());
 132                 if (OperTypes.find(name) != OperTypes.end())
 133                         throw CoreException("Duplicate type block with name " + name + " at " + tag->getTagLocation());
 134
 135                 OperInfo* ifo = new OperInfo;
 136                 OperTypes[name] = ifo;
 137                 ifo->name = name;
 138                 ifo->type_block = tag;
 139
 140                 std::string classname;
 141                 irc::spacesepstream str(tag->getString("classes"));
 142                 while (str.GetToken(classname))
 143                 {
 144                         LocalIndex::iterator cls = operclass.find(classname);
 145                         if (cls == operclass.end())
 146                                 throw CoreException("Oper type " + name + " has missing class " + classname);
 147                         ifo->class_blocks.push_back(cls->second);
 148                 }
 149         }
 150
 151         tags = ConfTags("oper");
 152         for(ConfigIter i = tags.first; i != tags.second; ++i)
 153         {
 154                 ConfigTag* tag = i->second;
 155
 156                 std::string name = tag->getString("name");
 157                 if (name.empty())
 158                         throw CoreException("<oper:name> missing from tag at " + tag->getTagLocation());
 159
 160                 std::string type = tag->getString("type");
 161                 OperIndex::iterator tblk = OperTypes.find(type);
 162                 if (tblk == OperTypes.end())
 163                         throw CoreException("Oper block " + name + " has missing type " + type);
 164                 if (oper_blocks.find(name) != oper_blocks.end())
 165                         throw CoreException("Duplicate oper block with name " + name + " at " + tag->getTagLocation());
 166
 167                 OperInfo* ifo = new OperInfo;
 168                 ifo->name = type;
 169                 ifo->oper_block = tag;
 170                 ifo->type_block = tblk->second->type_block;
 171                 ifo->class_blocks.assign(tblk->second->class_blocks.begin(), tblk->second->class_blocks.end());
 172                 oper_blocks[name] = ifo;
 173         }
 174 }
 175
 176 void ServerConfig::CrossCheckConnectBlocks(ServerConfig* current)
 177 {
 178         typedef std::map<std::string, ConnectClass*> ClassMap;
 179         ClassMap oldBlocksByMask;
 180         if (current)
 181         {
 182                 for(ClassVector::iterator i = current->Classes.begin(); i != current->Classes.end(); ++i)
 183                 {
 184                         ConnectClass* c = *i;
 185                         if (c->name.compare(0, 8, "unnamed-", 8))
 186                         {
 187                                 oldBlocksByMask["n" + c->name] = c;
 188                         }
 189                         else if (c->type == CC_ALLOW || c->type == CC_DENY)
 190                         {
 191                                 std::string typeMask = (c->type == CC_ALLOW) ? "a" : "d";
 192                                 typeMask += c->host;
 193                                 oldBlocksByMask[typeMask] = c;
 194                         }
 195                 }
 196         }
 197
 198         int blk_count = config_data.count("connect");
 199         if (blk_count == 0)
 200         {
 201                 // No connect blocks found; make a trivial default block
 202                 std::vector<KeyVal>* items;
 203                 ConfigTag* tag = ConfigTag::create("connect", "<auto>", 0, items);
 204                 items->push_back(std::make_pair("allow", "*"));
 205                 config_data.insert(std::make_pair("connect", tag));
 206                 blk_count = 1;
 207         }
 208
 209         Classes.resize(blk_count);
 210         std::map<std::string, int> names;
 211
 212         bool try_again = true;
 213         for(int tries=0; try_again; tries++)
 214         {
 215                 try_again = false;
 216                 ConfigTagList tags = ConfTags("connect");
 217                 int i=0;
 218                 for(ConfigIter it = tags.first; it != tags.second; ++it, ++i)
 219                 {
 220                         ConfigTag* tag = it->second;
 221                         if (Classes[i])
 222                                 continue;
 223
 224                         ConnectClass* parent = NULL;
 225                         std::string parentName = tag->getString("parent");
 226                         if (!parentName.empty())
 227                         {
 228                                 std::map<std::string,int>::iterator parentIter = names.find(parentName);
 229                                 if (parentIter == names.end())
 230                                 {
 231                                         try_again = true;
 232                                         // couldn't find parent this time. If it's the last time, we'll never find it.
 233                                         if (tries >= blk_count)
 234                                                 throw CoreException("Could not find parent connect class \"" + parentName + "\" for connect block at " + tag->getTagLocation());
 235                                         continue;
 236                                 }
 237                                 parent = Classes[parentIter->second];
 238                         }
 239
 240                         std::string name = tag->getString("name");
 241                         std::string mask, typeMask;
 242                         char type;
 243
 244                         if (tag->readString("allow", mask, false))
 245                         {
 246                                 type = CC_ALLOW;
 247                                 typeMask = 'a' + mask;
 248                         }
 249                         else if (tag->readString("deny", mask, false))
 250                         {
 251                                 type = CC_DENY;
 252                                 typeMask = 'd' + mask;
 253                         }
 254                         else if (!name.empty())
 255                         {
 256                                 type = CC_NAMED;
 257                                 mask = name;
 258                                 typeMask = 'n' + mask;
 259                         }
 260                         else
 261                         {
 262                                 throw CoreException("Connect class must have allow, deny, or name specified at " + tag->getTagLocation());
 263                         }
 264
 265                         if (name.empty())
 266                         {
 267                                 name = "unnamed-" + ConvToStr(i);
 268                         }
 269                         else
 270                         {
 271                                 typeMask = 'n' + name;
 272                         }
 273
 274                         if (names.find(name) != names.end())
 275                                 throw CoreException("Two connect classes with name \"" + name + "\" defined!");
 276                         names[name] = i;
 277
 278                         ConnectClass* me = parent ?
 279                                 new ConnectClass(tag, type, mask, *parent) :
 280                                 new ConnectClass(tag, type, mask);
 281
 282                         me->name = name;
 283
 284                         me->registration_timeout = tag->getInt("timeout", me->registration_timeout);
 285                         me->pingtime = tag->getInt("pingfreq", me->pingtime);
 286                         std::string sendq;
 287                         if (tag->readString("sendq", sendq))
 288                         {
 289                                 // attempt to guess a good hard/soft sendq from a single value
 290                                 long value = atol(sendq.c_str());
 291                                 if (value > 16384)
 292                                         me->softsendqmax = value / 16;
 293                                 else
 294                                         me->softsendqmax = value;
 295                                 me->hardsendqmax = value * 8;
 296                         }
 297                         me->softsendqmax = tag->getInt("softsendq", me->softsendqmax);
 298                         me->hardsendqmax = tag->getInt("hardsendq", me->hardsendqmax);
 299                         me->recvqmax = tag->getInt("recvq", me->recvqmax);
 300                         me->penaltythreshold = tag->getInt("threshold", me->penaltythreshold);
 301                         me->commandrate = tag->getInt("commandrate", me->commandrate);
 302                         me->fakelag = tag->getBool("fakelag", me->fakelag);
 303                         me->maxlocal = tag->getInt("localmax", me->maxlocal);
 304                         me->maxglobal = tag->getInt("globalmax", me->maxglobal);
 305                         me->maxchans = tag->getInt("maxchans", me->maxchans);
 306                         me->maxconnwarn = tag->getBool("maxconnwarn", me->maxconnwarn);
 307                         me->limit = tag->getInt("limit", me->limit);
 308                         me->resolvehostnames = tag->getBool("resolvehostnames", me->resolvehostnames);
 309
 310                         ClassMap::iterator oldMask = oldBlocksByMask.find(typeMask);
 311                         if (oldMask != oldBlocksByMask.end())
 312                         {
 313                                 ConnectClass* old = oldMask->second;
 314                                 oldBlocksByMask.erase(oldMask);
 315                                 old->Update(me);
 316                                 delete me;
 317                                 me = old;
 318                         }
 319                         Classes[i] = me;
 320                 }
 321         }
 322 }
 323
 324 /** Represents a deprecated configuration tag.
 325  */
 326 struct DeprecatedConfig
 327 {
 328         /** Tag name. */
 329         std::string tag;
 330
 331         /** Attribute key. */
 332         std::string key;
 333
 334         /** Attribute value. */
 335         std::string value;
 336
 337         /** Reason for deprecation. */
 338         std::string reason;
 339 };
 340
 341 static const DeprecatedConfig ChangedConfig[] = {
 342         { "bind",        "transport",   "",                 "has been moved to <bind:ssl> as of 2.0" },
 343         { "die",         "value",       "",                 "you need to reread your config" },
 344         { "gnutls",      "starttls",    "",                 "has been replaced with m_starttls as of 2.2" },
 345         { "link",        "autoconnect", "",                 "2.0+ does not use this attribute - define <autoconnect> tags instead" },
 346         { "link",        "transport",   "",                 "has been moved to <link:ssl> as of 2.0" },
 347         { "module",      "name",        "m_chanprotect.so", "has been replaced with m_customprefix as of 2.2" },
 348         { "module",      "name",        "m_halfop.so",      "has been replaced with m_customprefix as of 2.2" },
 349         { "options",     "cyclehosts",  "",                 "has been replaced with m_hostcycle as of 2.2" },
 350         { "performance", "nouserdns",   "",                 "has been moved to <connect:resolvehostnames> as of 2.2" }
 351 };
 352
 353 void ServerConfig::Fill()
 354 {
 355         ConfigTag* options = ConfValue("options");
 356         ConfigTag* security = ConfValue("security");
 357         if (sid.empty())
 358         {
 359                 ServerName = ConfValue("server")->getString("name", "irc.example.com");
 360                 ValidHost(ServerName, "<server:name>");
 361
 362                 sid = ConfValue("server")->getString("id");
 363                 if (!sid.empty() && !InspIRCd::IsSID(sid))
 364                         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.");
 365         }
 366         else
 367         {
 368                 if (ServerName != ConfValue("server")->getString("name"))
 369                         throw CoreException("You must restart to change the server name");
 370
 371                 std::string nsid = ConfValue("server")->getString("id");
 372                 if (!nsid.empty() && nsid != sid)
 373                         throw CoreException("You must restart to change the server id");
 374         }
 375         SoftLimit = ConfValue("performance")->getInt("softlimit", (SocketEngine::GetMaxFds() > 0 ? SocketEngine::GetMaxFds() : LONG_MAX), 10);
 376         CCOnConnect = ConfValue("performance")->getBool("clonesonconnect", true);
 377         MaxConn = ConfValue("performance")->getInt("somaxconn", SOMAXCONN);
 378         XLineMessage = options->getString("xlinemessage", options->getString("moronbanner", "You're banned!"));
 379         ServerDesc = ConfValue("server")->getString("description", "Configure Me");
 380         Network = ConfValue("server")->getString("network", "Network");
 381         NetBufferSize = ConfValue("performance")->getInt("netbuffersize", 10240, 1024, 65534);
 382         dns_timeout = ConfValue("dns")->getInt("timeout", 5);
 383         DisabledCommands = ConfValue("disabled")->getString("commands", "");
 384         DisabledDontExist = ConfValue("disabled")->getBool("fakenonexistant");
 385         UserStats = security->getString("userstats");
 386         CustomVersion = security->getString("customversion");
 387         HideSplits = security->getBool("hidesplits");
 388         HideBans = security->getBool("hidebans");
 389         HideWhoisServer = security->getString("hidewhois");
 390         HideKillsServer = security->getString("hidekills");
 391         RestrictBannedUsers = security->getBool("restrictbannedusers", true);
 392         GenericOper = security->getBool("genericoper");
 393         SyntaxHints = options->getBool("syntaxhints");
 394         CycleHostsFromUser = options->getBool("cyclehostsfromuser");
 395         UndernetMsgPrefix = options->getBool("ircumsgprefix");
 396         FullHostInTopic = options->getBool("hostintopic");
 397         MaxTargets = security->getInt("maxtargets", 20, 1, 31);
 398         DefaultModes = options->getString("defaultmodes", "not");
 399         PID = ConfValue("pid")->getString("file");
 400         MaxChans = ConfValue("channels")->getInt("users", 20);
 401         OperMaxChans = ConfValue("channels")->getInt("opers");
 402         c_ipv4_range = ConfValue("cidr")->getInt("ipv4clone", 32);
 403         c_ipv6_range = ConfValue("cidr")->getInt("ipv6clone", 128);
 404         Limits.NickMax = ConfValue("limits")->getInt("maxnick", 32);
 405         Limits.ChanMax = ConfValue("limits")->getInt("maxchan", 64);
 406         Limits.MaxModes = ConfValue("limits")->getInt("maxmodes", 20);
 407         Limits.IdentMax = ConfValue("limits")->getInt("maxident", 11);
 408         Limits.MaxHost = ConfValue("limits")->getInt("maxhost", 64);
 409         Limits.MaxQuit = ConfValue("limits")->getInt("maxquit", 255);
 410         Limits.MaxTopic = ConfValue("limits")->getInt("maxtopic", 307);
 411         Limits.MaxKick = ConfValue("limits")->getInt("maxkick", 255);
 412         Limits.MaxGecos = ConfValue("limits")->getInt("maxgecos", 128);
 413         Limits.MaxAway = ConfValue("limits")->getInt("maxaway", 200);
 414         Limits.MaxLine = ConfValue("limits")->getInt("maxline", 512);
 415         Paths.Config = ConfValue("path")->getString("configdir", INSPIRCD_CONFIG_PATH);
 416         Paths.Data = ConfValue("path")->getString("datadir", INSPIRCD_DATA_PATH);
 417         Paths.Log = ConfValue("path")->getString("logdir", INSPIRCD_LOG_PATH);
 418         Paths.Module = ConfValue("path")->getString("moduledir", INSPIRCD_MODULE_PATH);
 419         InvBypassModes = options->getBool("invitebypassmodes", true);
 420         NoSnoticeStack = options->getBool("nosnoticestack", false);
 421
 422         if (Network.find(' ') != std::string::npos)
 423                 throw CoreException(Network + " is not a valid network name. A network name must not contain spaces.");
 424
 425         std::string defbind = options->getString("defaultbind");
 426         if (assign(defbind) == "ipv4")
 427         {
 428                 WildcardIPv6 = false;
 429         }
 430         else if (assign(defbind) == "ipv6")
 431         {
 432                 WildcardIPv6 = true;
 433         }
 434         else
 435         {
 436                 WildcardIPv6 = true;
 437                 int socktest = socket(AF_INET6, SOCK_STREAM, 0);
 438                 if (socktest < 0)
 439                         WildcardIPv6 = false;
 440                 else
 441                         SocketEngine::Close(socktest);
 442         }
 443
 444         ReadXLine(this, "badip", "ipmask", ServerInstance->XLines->GetFactory("Z"));
 445         ReadXLine(this, "badnick", "nick", ServerInstance->XLines->GetFactory("Q"));
 446         ReadXLine(this, "badhost", "host", ServerInstance->XLines->GetFactory("K"));
 447         ReadXLine(this, "exception", "host", ServerInstance->XLines->GetFactory("E"));
 448
 449         memset(DisabledUModes, 0, sizeof(DisabledUModes));
 450         std::string modes = ConfValue("disabled")->getString("usermodes");
 451         for (std::string::const_iterator p = modes.begin(); p != modes.end(); ++p)
 452         {
 453                 // Complain when the character is not a-z or A-Z
 454                 if ((*p < 'A') || (*p > 'z') || ((*p < 'a') && (*p > 'Z')))
 455                         throw CoreException("Invalid usermode " + std::string(1, *p) + " was found.");
 456                 DisabledUModes[*p - 'A'] = 1;
 457         }
 458
 459         memset(DisabledCModes, 0, sizeof(DisabledCModes));
 460         modes = ConfValue("disabled")->getString("chanmodes");
 461         for (std::string::const_iterator p = modes.begin(); p != modes.end(); ++p)
 462         {
 463                 if ((*p < 'A') || (*p > 'z') || ((*p < 'a') && (*p > 'Z')))
 464                         throw CoreException("Invalid chanmode " + std::string(1, *p) + " was found.");
 465                 DisabledCModes[*p - 'A'] = 1;
 466         }
 467
 468         std::string v = security->getString("announceinvites");
 469
 470         if (v == "ops")
 471                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_OPS;
 472         else if (v == "all")
 473                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_ALL;
 474         else if (v == "dynamic")
 475                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_DYNAMIC;
 476         else
 477                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_NONE;
 478
 479         v = security->getString("operspywhois");
 480         if (v == "splitmsg")
 481                 OperSpyWhois = SPYWHOIS_SPLITMSG;
 482         else if (v == "on" || v == "yes")
 483                 OperSpyWhois = SPYWHOIS_SINGLEMSG;
 484         else
 485                 OperSpyWhois = SPYWHOIS_NONE;
 486 }
 487
 488 // WARNING: it is not safe to use most of the codebase in this function, as it
 489 // will run in the config reader thread
 490 void ServerConfig::Read()
 491 {
 492         /* Load and parse the config file, if there are any errors then explode */
 493
 494         ParseStack stack(this);
 495         try
 496         {
 497                 valid = stack.ParseFile(ServerInstance->ConfigFileName, 0);
 498         }
 499         catch (CoreException& err)
 500         {
 501                 valid = false;
 502                 errstr << err.GetReason() << std::endl;
 503         }
 504 }
 505
 506 void ServerConfig::Apply(ServerConfig* old, const std::string &useruid)
 507 {
 508         valid = true;
 509         if (old)
 510         {
 511                 /*
 512                  * These values can only be set on boot. Keep their old values. Do it before we send messages so we actually have a servername.
 513                  */
 514                 this->ServerName = old->ServerName;
 515                 this->sid = old->sid;
 516                 this->cmdline = old->cmdline;
 517         }
 518
 519         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 520         try
 521         {
 522                 for (int index = 0; index * sizeof(DeprecatedConfig) < sizeof(ChangedConfig); index++)
 523                 {
 524                         std::string value;
 525                         ConfigTagList tags = ConfTags(ChangedConfig[index].tag);
 526                         for(ConfigIter i = tags.first; i != tags.second; ++i)
 527                         {
 528                                 if (i->second->readString(ChangedConfig[index].key, value, true)
 529                                         && (ChangedConfig[index].value.empty() || value == ChangedConfig[index].value))
 530                                 {
 531                                         errstr << "Your configuration contains a deprecated value: <"  << ChangedConfig[index].tag;
 532                                         if (ChangedConfig[index].value.empty())
 533                                         {
 534                                                 errstr << ':' << ChangedConfig[index].key;
 535                                         }
 536                                         else
 537                                         {
 538                                                 errstr << ' ' << ChangedConfig[index].key << "=\"" << ChangedConfig[index].value << "\"";
 539                                         }
 540                                         errstr << "> - " << ChangedConfig[index].reason << " (at " << i->second->getTagLocation() << ")" << std::endl;
 541                                 }
 542                         }
 543                 }
 544
 545                 Fill();
 546
 547                 // Handle special items
 548                 CrossCheckOperClassType();
 549                 CrossCheckConnectBlocks(old);
 550         }
 551         catch (CoreException &ce)
 552         {
 553                 errstr << ce.GetReason();
 554         }
 555
 556         // Check errors before dealing with failed binds, since continuing on failed bind is wanted in some circumstances.
 557         valid = errstr.str().empty();
 558
 559         // write once here, to try it out and make sure its ok
 560         if (valid)
 561                 ServerInstance->WritePID(this->PID);
 562
 563         ConfigTagList binds = ConfTags("bind");
 564         if (binds.first == binds.second)
 565                  errstr << "Possible configuration error: you have not defined any <bind> blocks." << std::endl
 566                          << "You will need to do this if you want clients to be able to connect!" << std::endl;
 567
 568         if (old)
 569         {
 570                 // On first run, ports are bound later on
 571                 FailedPortList pl;
 572                 ServerInstance->BindPorts(pl);
 573                 if (pl.size())
 574                 {
 575                         errstr << "Not all your client ports could be bound." << std::endl
 576                                 << "The following port(s) failed to bind:" << std::endl;
 577
 578                         int j = 1;
 579                         for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 580                         {
 581                                 errstr << j << ".\tAddress: " << (i->first.empty() ? "<all>" : i->first.c_str()) << "\tReason: "
 582                                         << i->second << std::endl;
 583                         }
 584                 }
 585         }
 586
 587         User* user = useruid.empty() ? NULL : ServerInstance->FindNick(useruid);
 588
 589         if (!valid)
 590         {
 591                 ServerInstance->Logs->Log("CONFIG", LOG_DEFAULT, "There were errors in your configuration file:");
 592                 Classes.clear();
 593         }
 594
 595         while (errstr.good())
 596         {
 597                 std::string line;
 598                 getline(errstr, line, '\n');
 599                 if (line.empty())
 600                         continue;
 601                 // On startup, print out to console (still attached at this point)
 602                 if (!old)
 603                         std::cout << line << std::endl;
 604                 // If a user is rehashing, tell them directly
 605                 if (user)
 606                         user->SendText(":%s NOTICE %s :*** %s", ServerInstance->Config->ServerName.c_str(), user->nick.c_str(), line.c_str());
 607                 // Also tell opers
 608                 ServerInstance->SNO->WriteGlobalSno('a', line);
 609         }
 610
 611         errstr.clear();
 612         errstr.str(std::string());
 613
 614         // Re-parse our MOTD and RULES files for colors -- Justasic
 615         for (ClassVector::const_iterator it = this->Classes.begin(), it_end = this->Classes.end(); it != it_end; ++it)
 616         {
 617                 ConfigTag *tag = (*it)->config;
 618                 // Make sure our connection class allows motd colors
 619                 if(!tag->getBool("allowmotdcolors"))
 620                       continue;
 621
 622                 ConfigFileCache::iterator file = this->Files.find(tag->getString("motd", "motd"));
 623                 if (file != this->Files.end())
 624                       InspIRCd::ProcessColors(file->second);
 625         }
 626
 627         /* No old configuration -> initial boot, nothing more to do here */
 628         if (!old)
 629         {
 630                 if (!valid)
 631                 {
 632                         ServerInstance->Exit(EXIT_STATUS_CONFIG);
 633                 }
 634
 635                 return;
 636         }
 637
 638
 639         // If there were errors processing configuration, don't touch modules.
 640         if (!valid)
 641                 return;
 642
 643         ApplyModules(user);
 644
 645         if (user)
 646                 user->SendText(":%s NOTICE %s :*** Successfully rehashed server.",
 647                         ServerInstance->Config->ServerName.c_str(), user->nick.c_str());
 648         ServerInstance->SNO->WriteGlobalSno('a', "*** Successfully rehashed server.");
 649 }
 650
 651 void ServerConfig::ApplyModules(User* user)
 652 {
 653         std::vector<std::string> added_modules;
 654         ModuleManager::ModuleMap removed_modules = ServerInstance->Modules->GetModules();
 655
 656         ConfigTagList tags = ConfTags("module");
 657         for(ConfigIter i = tags.first; i != tags.second; ++i)
 658         {
 659                 ConfigTag* tag = i->second;
 660                 std::string name;
 661                 if (tag->readString("name", name))
 662                 {
 663                         // if this module is already loaded, the erase will succeed, so we need do nothing
 664                         // otherwise, we need to add the module (which will be done later)
 665                         if (removed_modules.erase(name) == 0)
 666                                 added_modules.push_back(name);
 667                 }
 668         }
 669
 670         for (ModuleManager::ModuleMap::iterator i = removed_modules.begin(); i != removed_modules.end(); ++i)
 671         {
 672                 const std::string& modname = i->first;
 673                 // Don't remove core_*.so, just remove m_*.so
 674                 if (modname.c_str()[0] == 'c')
 675                         continue;
 676                 if (ServerInstance->Modules->Unload(i->second))
 677                 {
 678                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH UNLOADED MODULE: %s", modname.c_str());
 679
 680                         if (user)
 681                                 user->WriteNumeric(RPL_UNLOADEDMODULE, "%s :Module %s successfully unloaded.", modname.c_str(), modname.c_str());
 682                         else
 683                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully unloaded.", modname.c_str());
 684                 }
 685                 else
 686                 {
 687                         if (user)
 688                                 user->WriteNumeric(ERR_CANTUNLOADMODULE, "%s :Failed to unload module %s: %s", modname.c_str(), modname.c_str(), ServerInstance->Modules->LastError().c_str());
 689                         else
 690                                  ServerInstance->SNO->WriteGlobalSno('a', "Failed to unload module %s: %s", modname.c_str(), ServerInstance->Modules->LastError().c_str());
 691                 }
 692         }
 693
 694         for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 695         {
 696                 if (ServerInstance->Modules->Load(adding->c_str()))
 697                 {
 698                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH LOADED MODULE: %s",adding->c_str());
 699                         if (user)
 700                                 user->WriteNumeric(RPL_LOADEDMODULE, "%s :Module %s successfully loaded.", adding->c_str(), adding->c_str());
 701                         else
 702                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully loaded.", adding->c_str());
 703                 }
 704                 else
 705                 {
 706                         if (user)
 707                                 user->WriteNumeric(ERR_CANTLOADMODULE, "%s :Failed to load module %s: %s", adding->c_str(), adding->c_str(), ServerInstance->Modules->LastError().c_str());
 708                         else
 709                                 ServerInstance->SNO->WriteGlobalSno('a', "Failed to load module %s: %s", adding->c_str(), ServerInstance->Modules->LastError().c_str());
 710                 }
 711         }
 712 }
 713
 714 ConfigTag* ServerConfig::ConfValue(const std::string &tag)
 715 {
 716         ConfigTagList found = config_data.equal_range(tag);
 717         if (found.first == found.second)
 718                 return EmptyTag;
 719         ConfigTag* rv = found.first->second;
 720         found.first++;
 721         if (found.first != found.second)
 722                 ServerInstance->Logs->Log("CONFIG", LOG_DEFAULT, "Multiple <" + tag + "> tags found; only first will be used "
 723                         "(first at " + rv->getTagLocation() + "; second at " + found.first->second->getTagLocation() + ")");
 724         return rv;
 725 }
 726
 727 ConfigTagList ServerConfig::ConfTags(const std::string& tag)
 728 {
 729         return config_data.equal_range(tag);
 730 }
 731
 732 std::string ServerConfig::Escape(const std::string& str, bool xml)
 733 {
 734         std::string escaped;
 735         for (std::string::const_iterator it = str.begin(); it != str.end(); ++it)
 736         {
 737                 switch (*it)
 738                 {
 739                         case '"':
 740                                 escaped += xml ? "&quot;" : "\"";
 741                                 break;
 742                         case '&':
 743                                 escaped += xml ? "&amp;" : "&";
 744                                 break;
 745                         case '\\':
 746                                 escaped += xml ? "\\" : "\\\\";
 747                                 break;
 748                         default:
 749                                 escaped += *it;
 750                                 break;
 751                 }
 752         }
 753         return escaped;
 754 }
 755
 756 void ConfigReaderThread::Run()
 757 {
 758         Config->Read();
 759         done = true;
 760 }
 761
 762 void ConfigReaderThread::Finish()
 763 {
 764         ServerConfig* old = ServerInstance->Config;
 765         ServerInstance->Logs->Log("CONFIG", LOG_DEBUG, "Switching to new configuration...");
 766         ServerInstance->Config = this->Config;
 767         Config->Apply(old, TheUserUID);
 768
 769         if (Config->valid)
 770         {
 771                 /*
 772                  * Apply the changed configuration from the rehash.
 773                  *
 774                  * XXX: The order of these is IMPORTANT, do not reorder them without testing
 775                  * thoroughly!!!
 776                  */
 777                 ServerInstance->XLines->CheckELines();
 778                 ServerInstance->XLines->ApplyLines();
 779                 ChanModeReference ban(NULL, "ban");
 780                 static_cast<ListModeBase*>(*ban)->DoRehash();
 781                 Config->ApplyDisabledCommands(Config->DisabledCommands);
 782                 User* user = ServerInstance->FindNick(TheUserUID);
 783
 784                 ConfigStatus status(user);
 785                 const ModuleManager::ModuleMap& mods = ServerInstance->Modules->GetModules();
 786                 for (ModuleManager::ModuleMap::const_iterator i = mods.begin(); i != mods.end(); ++i)
 787                         i->second->ReadConfig(status);
 788
 789                 // The description of this server may have changed - update it for WHOIS etc.
 790                 ServerInstance->FakeClient->server->description = Config->ServerDesc;
 791
 792                 ServerInstance->ISupport.Build();
 793
 794                 ServerInstance->Logs->CloseLogs();
 795                 ServerInstance->Logs->OpenFileLogs();
 796
 797                 if (Config->RawLog && !old->RawLog)
 798                         ServerInstance->Users->ServerNoticeAll("*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.");
 799
 800                 Config = old;
 801         }
 802         else
 803         {
 804                 // whoops, abort!
 805                 ServerInstance->Config = old;
 806         }
 807 }