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         SoftLimit = ServerInstance->SE->GetMaxFds();
  40         MaxConn = SOMAXCONN;
  41         MaxChans = 20;
  42         OperMaxChans = 30;
  43         c_ipv4_range = 32;
  44         c_ipv6_range = 128;
  45 }
  46
  47 static void ValidHost(const std::string& p, const std::string& msg)
  48 {
  49         int num_dots = 0;
  50         if (p.empty() || p[0] == '.')
  51                 throw CoreException("The value of "+msg+" is not a valid hostname");
  52         for (unsigned int i=0;i < p.length();i++)
  53         {
  54                 switch (p[i])
  55                 {
  56                         case ' ':
  57                                 throw CoreException("The value of "+msg+" is not a valid hostname");
  58                         case '.':
  59                                 num_dots++;
  60                         break;
  61                 }
  62         }
  63         if (num_dots == 0)
  64                 throw CoreException("The value of "+msg+" is not a valid hostname");
  65 }
  66
  67 bool ServerConfig::ApplyDisabledCommands(const std::string& data)
  68 {
  69         std::stringstream dcmds(data);
  70         std::string thiscmd;
  71
  72         /* Enable everything first */
  73         for (Commandtable::iterator x = ServerInstance->Parser->cmdlist.begin(); x != ServerInstance->Parser->cmdlist.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                 Commandtable::iterator cm = ServerInstance->Parser->cmdlist.find(thiscmd);
  80                 if (cm != ServerInstance->Parser->cmdlist.end())
  81                 {
  82                         cm->second->Disable(true);
  83                 }
  84         }
  85         return true;
  86 }
  87
  88 static void ReadXLine(ServerConfig* conf, const std::string& tag, const std::string& key, XLineFactory* make)
  89 {
  90         ConfigTagList tags = conf->ConfTags(tag);
  91         for(ConfigIter i = tags.first; i != tags.second; ++i)
  92         {
  93                 ConfigTag* ctag = i->second;
  94                 std::string mask;
  95                 if (!ctag->readString(key, mask))
  96                         throw CoreException("<"+tag+":"+key+"> missing at " + ctag->getTagLocation());
  97                 std::string reason = ctag->getString("reason", "<Config>");
  98                 XLine* xl = make->Generate(ServerInstance->Time(), 0, "<Config>", reason, mask);
  99                 if (!ServerInstance->XLines->AddLine(xl, NULL))
 100                         delete xl;
 101         }
 102 }
 103
 104 typedef std::map<std::string, ConfigTag*> LocalIndex;
 105 void ServerConfig::CrossCheckOperClassType()
 106 {
 107         LocalIndex operclass;
 108         ConfigTagList tags = ConfTags("class");
 109         for(ConfigIter i = tags.first; i != tags.second; ++i)
 110         {
 111                 ConfigTag* tag = i->second;
 112                 std::string name = tag->getString("name");
 113                 if (name.empty())
 114                         throw CoreException("<class:name> missing from tag at " + tag->getTagLocation());
 115                 if (operclass.find(name) != operclass.end())
 116                         throw CoreException("Duplicate class block with name " + name + " at " + tag->getTagLocation());
 117                 operclass[name] = tag;
 118         }
 119         tags = ConfTags("type");
 120         for(ConfigIter i = tags.first; i != tags.second; ++i)
 121         {
 122                 ConfigTag* tag = i->second;
 123                 std::string name = tag->getString("name");
 124                 if (name.empty())
 125                         throw CoreException("<type:name> is missing from tag at " + tag->getTagLocation());
 126                 if (OperTypes.find(name) != OperTypes.end())
 127                         throw CoreException("Duplicate type block with name " + name + " at " + tag->getTagLocation());
 128
 129                 OperInfo* ifo = new OperInfo;
 130                 OperTypes[name] = ifo;
 131                 ifo->name = name;
 132                 ifo->type_block = tag;
 133
 134                 std::string classname;
 135                 irc::spacesepstream str(tag->getString("classes"));
 136                 while (str.GetToken(classname))
 137                 {
 138                         LocalIndex::iterator cls = operclass.find(classname);
 139                         if (cls == operclass.end())
 140                                 throw CoreException("Oper type " + name + " has missing class " + classname);
 141                         ifo->class_blocks.push_back(cls->second);
 142                 }
 143         }
 144
 145         tags = ConfTags("oper");
 146         for(ConfigIter i = tags.first; i != tags.second; ++i)
 147         {
 148                 ConfigTag* tag = i->second;
 149
 150                 std::string name = tag->getString("name");
 151                 if (name.empty())
 152                         throw CoreException("<oper:name> missing from tag at " + tag->getTagLocation());
 153
 154                 std::string type = tag->getString("type");
 155                 OperIndex::iterator tblk = OperTypes.find(type);
 156                 if (tblk == OperTypes.end())
 157                         throw CoreException("Oper block " + name + " has missing type " + type);
 158                 if (oper_blocks.find(name) != oper_blocks.end())
 159                         throw CoreException("Duplicate oper block with name " + name + " at " + tag->getTagLocation());
 160
 161                 OperInfo* ifo = new OperInfo;
 162                 ifo->name = type;
 163                 ifo->oper_block = tag;
 164                 ifo->type_block = tblk->second->type_block;
 165                 ifo->class_blocks.assign(tblk->second->class_blocks.begin(), tblk->second->class_blocks.end());
 166                 oper_blocks[name] = ifo;
 167         }
 168 }
 169
 170 void ServerConfig::CrossCheckConnectBlocks(ServerConfig* current)
 171 {
 172         typedef std::map<std::string, ConnectClass*> ClassMap;
 173         ClassMap oldBlocksByMask;
 174         if (current)
 175         {
 176                 for(ClassVector::iterator i = current->Classes.begin(); i != current->Classes.end(); ++i)
 177                 {
 178                         ConnectClass* c = *i;
 179                         if (c->name.substr(0, 8) != "unnamed-")
 180                         {
 181                                 oldBlocksByMask["n" + c->name] = c;
 182                         }
 183                         else if (c->type == CC_ALLOW || c->type == CC_DENY)
 184                         {
 185                                 std::string typeMask = (c->type == CC_ALLOW) ? "a" : "d";
 186                                 typeMask += c->host;
 187                                 oldBlocksByMask[typeMask] = c;
 188                         }
 189                 }
 190         }
 191
 192         int blk_count = config_data.count("connect");
 193         if (blk_count == 0)
 194         {
 195                 // No connect blocks found; make a trivial default block
 196                 std::vector<KeyVal>* items;
 197                 ConfigTag* tag = ConfigTag::create("connect", "<auto>", 0, items);
 198                 items->push_back(std::make_pair("allow", "*"));
 199                 config_data.insert(std::make_pair("connect", tag));
 200                 blk_count = 1;
 201         }
 202
 203         Classes.resize(blk_count);
 204         std::map<std::string, int> names;
 205
 206         bool try_again = true;
 207         for(int tries=0; try_again; tries++)
 208         {
 209                 try_again = false;
 210                 ConfigTagList tags = ConfTags("connect");
 211                 int i=0;
 212                 for(ConfigIter it = tags.first; it != tags.second; ++it, ++i)
 213                 {
 214                         ConfigTag* tag = it->second;
 215                         if (Classes[i])
 216                                 continue;
 217
 218                         ConnectClass* parent = NULL;
 219                         std::string parentName = tag->getString("parent");
 220                         if (!parentName.empty())
 221                         {
 222                                 std::map<std::string,int>::iterator parentIter = names.find(parentName);
 223                                 if (parentIter == names.end())
 224                                 {
 225                                         try_again = true;
 226                                         // couldn't find parent this time. If it's the last time, we'll never find it.
 227                                         if (tries >= blk_count)
 228                                                 throw CoreException("Could not find parent connect class \"" + parentName + "\" for connect block at " + tag->getTagLocation());
 229                                         continue;
 230                                 }
 231                                 parent = Classes[parentIter->second];
 232                         }
 233
 234                         std::string name = tag->getString("name");
 235                         std::string mask, typeMask;
 236                         char type;
 237
 238                         if (tag->readString("allow", mask, false))
 239                         {
 240                                 type = CC_ALLOW;
 241                                 typeMask = 'a' + mask;
 242                         }
 243                         else if (tag->readString("deny", mask, false))
 244                         {
 245                                 type = CC_DENY;
 246                                 typeMask = 'd' + mask;
 247                         }
 248                         else if (!name.empty())
 249                         {
 250                                 type = CC_NAMED;
 251                                 mask = name;
 252                                 typeMask = 'n' + mask;
 253                         }
 254                         else
 255                         {
 256                                 throw CoreException("Connect class must have allow, deny, or name specified at " + tag->getTagLocation());
 257                         }
 258
 259                         if (name.empty())
 260                         {
 261                                 name = "unnamed-" + ConvToStr(i);
 262                         }
 263                         else
 264                         {
 265                                 typeMask = 'n' + name;
 266                         }
 267
 268                         if (names.find(name) != names.end())
 269                                 throw CoreException("Two connect classes with name \"" + name + "\" defined!");
 270                         names[name] = i;
 271
 272                         ConnectClass* me = parent ?
 273                                 new ConnectClass(tag, type, mask, *parent) :
 274                                 new ConnectClass(tag, type, mask);
 275
 276                         me->name = name;
 277
 278                         me->registration_timeout = tag->getInt("timeout", me->registration_timeout);
 279                         me->pingtime = tag->getInt("pingfreq", me->pingtime);
 280                         std::string sendq;
 281                         if (tag->readString("sendq", sendq))
 282                         {
 283                                 // attempt to guess a good hard/soft sendq from a single value
 284                                 long value = atol(sendq.c_str());
 285                                 if (value > 16384)
 286                                         me->softsendqmax = value / 16;
 287                                 else
 288                                         me->softsendqmax = value;
 289                                 me->hardsendqmax = value * 8;
 290                         }
 291                         me->softsendqmax = tag->getInt("softsendq", me->softsendqmax);
 292                         me->hardsendqmax = tag->getInt("hardsendq", me->hardsendqmax);
 293                         me->recvqmax = tag->getInt("recvq", me->recvqmax);
 294                         me->penaltythreshold = tag->getInt("threshold", me->penaltythreshold);
 295                         me->commandrate = tag->getInt("commandrate", me->commandrate);
 296                         me->fakelag = tag->getBool("fakelag", me->fakelag);
 297                         me->maxlocal = tag->getInt("localmax", me->maxlocal);
 298                         me->maxglobal = tag->getInt("globalmax", me->maxglobal);
 299                         me->maxchans = tag->getInt("maxchans", me->maxchans);
 300                         me->maxconnwarn = tag->getBool("maxconnwarn", me->maxconnwarn);
 301                         me->limit = tag->getInt("limit", me->limit);
 302                         me->resolvehostnames = tag->getBool("resolvehostnames", me->resolvehostnames);
 303
 304                         ClassMap::iterator oldMask = oldBlocksByMask.find(typeMask);
 305                         if (oldMask != oldBlocksByMask.end())
 306                         {
 307                                 ConnectClass* old = oldMask->second;
 308                                 oldBlocksByMask.erase(oldMask);
 309                                 old->Update(me);
 310                                 delete me;
 311                                 me = old;
 312                         }
 313                         Classes[i] = me;
 314                 }
 315         }
 316 }
 317
 318 /** Represents a deprecated configuration tag.
 319  */
 320 struct DeprecatedConfig
 321 {
 322         /** Tag name. */
 323         std::string tag;
 324
 325         /** Attribute key. */
 326         std::string key;
 327
 328         /** Attribute value. */
 329         std::string value;
 330
 331         /** Reason for deprecation. */
 332         std::string reason;
 333 };
 334
 335 static const DeprecatedConfig ChangedConfig[] = {
 336         { "bind",        "transport",   "",                 "has been moved to <bind:ssl> as of 2.0" },
 337         { "die",         "value",       "",                 "you need to reread your config" },
 338         { "link",        "autoconnect", "",                 "2.0+ does not use this attribute - define <autoconnect> tags instead" },
 339         { "link",        "transport",   "",                 "has been moved to <link:ssl> as of 2.0" },
 340         { "module",      "name",        "m_chanprotect.so", "has been replaced with m_customprefix as of 2.2" },
 341         { "module",      "name",        "m_halfop.so",      "has been replaced with m_customprefix as of 2.2" },
 342         { "options",     "cyclehosts",  "",                 "has been replaced with m_hostcycle as of 2.2" },
 343         { "performance", "nouserdns",   "",                 "has been moved to <connect:resolvehostnames> as of 2.2" }
 344 };
 345
 346 void ServerConfig::Fill()
 347 {
 348         ConfigTag* options = ConfValue("options");
 349         ConfigTag* security = ConfValue("security");
 350         if (sid.empty())
 351         {
 352                 ServerName = ConfValue("server")->getString("name", "irc.example.com");
 353                 ValidHost(ServerName, "<server:name>");
 354
 355                 sid = ConfValue("server")->getString("id");
 356                 if (!sid.empty() && !InspIRCd::IsSID(sid))
 357                         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.");
 358         }
 359         else
 360         {
 361                 if (ServerName != ConfValue("server")->getString("name"))
 362                         throw CoreException("You must restart to change the server name");
 363
 364                 std::string nsid = ConfValue("server")->getString("id");
 365                 if (!nsid.empty() && nsid != sid)
 366                         throw CoreException("You must restart to change the server id");
 367         }
 368         diepass = ConfValue("power")->getString("diepass");
 369         restartpass = ConfValue("power")->getString("restartpass");
 370         powerhash = ConfValue("power")->getString("hash");
 371         PrefixQuit = options->getString("prefixquit");
 372         SuffixQuit = options->getString("suffixquit");
 373         FixedQuit = options->getString("fixedquit");
 374         PrefixPart = options->getString("prefixpart");
 375         SuffixPart = options->getString("suffixpart");
 376         FixedPart = options->getString("fixedpart");
 377         SoftLimit = ConfValue("performance")->getInt("softlimit", ServerInstance->SE->GetMaxFds(), 10, ServerInstance->SE->GetMaxFds());
 378         CCOnConnect = ConfValue("performance")->getBool("clonesonconnect", true);
 379         MaxConn = ConfValue("performance")->getInt("somaxconn", SOMAXCONN);
 380         XLineMessage = options->getString("xlinemessage", options->getString("moronbanner", "You're banned!"));
 381         ServerDesc = ConfValue("server")->getString("description", "Configure Me");
 382         Network = ConfValue("server")->getString("network", "Network");
 383         AdminName = ConfValue("admin")->getString("name", "");
 384         AdminEmail = ConfValue("admin")->getString("email", "null@example.com");
 385         AdminNick = ConfValue("admin")->getString("nick", "admin");
 386         NetBufferSize = ConfValue("performance")->getInt("netbuffersize", 10240, 1024, 65534);
 387         dns_timeout = ConfValue("dns")->getInt("timeout", 5);
 388         DisabledCommands = ConfValue("disabled")->getString("commands", "");
 389         DisabledDontExist = ConfValue("disabled")->getBool("fakenonexistant");
 390         UserStats = security->getString("userstats");
 391         CustomVersion = security->getString("customversion");
 392         HideSplits = security->getBool("hidesplits");
 393         HideBans = security->getBool("hidebans");
 394         HideWhoisServer = security->getString("hidewhois");
 395         HideKillsServer = security->getString("hidekills");
 396         RestrictBannedUsers = security->getBool("restrictbannedusers", true);
 397         GenericOper = security->getBool("genericoper");
 398         SyntaxHints = options->getBool("syntaxhints");
 399         CycleHostsFromUser = options->getBool("cyclehostsfromuser");
 400         UndernetMsgPrefix = options->getBool("ircumsgprefix");
 401         FullHostInTopic = options->getBool("hostintopic");
 402         MaxTargets = security->getInt("maxtargets", 20, 1, 31);
 403         DefaultModes = options->getString("defaultmodes", "not");
 404         PID = ConfValue("pid")->getString("file");
 405         MaxChans = ConfValue("channels")->getInt("users", 20);
 406         OperMaxChans = ConfValue("channels")->getInt("opers", 60);
 407         c_ipv4_range = ConfValue("cidr")->getInt("ipv4clone", 32);
 408         c_ipv6_range = ConfValue("cidr")->getInt("ipv6clone", 128);
 409         Limits.NickMax = ConfValue("limits")->getInt("maxnick", 32);
 410         Limits.ChanMax = ConfValue("limits")->getInt("maxchan", 64);
 411         Limits.MaxModes = ConfValue("limits")->getInt("maxmodes", 20);
 412         Limits.IdentMax = ConfValue("limits")->getInt("maxident", 11);
 413         Limits.MaxQuit = ConfValue("limits")->getInt("maxquit", 255);
 414         Limits.MaxTopic = ConfValue("limits")->getInt("maxtopic", 307);
 415         Limits.MaxKick = ConfValue("limits")->getInt("maxkick", 255);
 416         Limits.MaxGecos = ConfValue("limits")->getInt("maxgecos", 128);
 417         Limits.MaxAway = ConfValue("limits")->getInt("maxaway", 200);
 418         Limits.MaxLine = ConfValue("limits")->getInt("maxline", 512);
 419         Paths.Config = ConfValue("path")->getString("configdir", CONFIG_PATH);
 420         Paths.Data = ConfValue("path")->getString("datadir", DATA_PATH);
 421         Paths.Log = ConfValue("path")->getString("logdir", LOG_PATH);
 422         Paths.Module = ConfValue("path")->getString("moduledir", MOD_PATH);
 423         InvBypassModes = options->getBool("invitebypassmodes", true);
 424         NoSnoticeStack = options->getBool("nosnoticestack", false);
 425
 426         if (Network.find(' ') != std::string::npos)
 427                 throw CoreException(Network + " is not a valid network name. A network name must not contain spaces.");
 428
 429         std::string defbind = options->getString("defaultbind");
 430         if (assign(defbind) == "ipv4")
 431         {
 432                 WildcardIPv6 = false;
 433         }
 434         else if (assign(defbind) == "ipv6")
 435         {
 436                 WildcardIPv6 = true;
 437         }
 438         else
 439         {
 440                 WildcardIPv6 = true;
 441                 int socktest = socket(AF_INET6, SOCK_STREAM, 0);
 442                 if (socktest < 0)
 443                         WildcardIPv6 = false;
 444                 else
 445                         ServerInstance->SE->Close(socktest);
 446         }
 447
 448         ReadXLine(this, "badip", "ipmask", ServerInstance->XLines->GetFactory("Z"));
 449         ReadXLine(this, "badnick", "nick", ServerInstance->XLines->GetFactory("Q"));
 450         ReadXLine(this, "badhost", "host", ServerInstance->XLines->GetFactory("K"));
 451         ReadXLine(this, "exception", "host", ServerInstance->XLines->GetFactory("E"));
 452
 453         memset(DisabledUModes, 0, sizeof(DisabledUModes));
 454         std::string modes = ConfValue("disabled")->getString("usermodes");
 455         for (std::string::const_iterator p = modes.begin(); p != modes.end(); ++p)
 456         {
 457                 // Complain when the character is not a-z or A-Z
 458                 if ((*p < 'A') || (*p > 'z') || ((*p < 'a') && (*p > 'Z')))
 459                         throw CoreException("Invalid usermode " + std::string(1, *p) + " was found.");
 460                 DisabledUModes[*p - 'A'] = 1;
 461         }
 462
 463         memset(DisabledCModes, 0, sizeof(DisabledCModes));
 464         modes = ConfValue("disabled")->getString("chanmodes");
 465         for (std::string::const_iterator p = modes.begin(); p != modes.end(); ++p)
 466         {
 467                 if ((*p < 'A') || (*p > 'z') || ((*p < 'a') && (*p > 'Z')))
 468                         throw CoreException("Invalid chanmode " + std::string(1, *p) + " was found.");
 469                 DisabledCModes[*p - 'A'] = 1;
 470         }
 471
 472         memset(HideModeLists, 0, sizeof(HideModeLists));
 473         modes = ConfValue("security")->getString("hidemodes");
 474         for (std::string::const_iterator p = modes.begin(); p != modes.end(); ++p)
 475                 HideModeLists[(unsigned char) *p] = true;
 476
 477         std::string v = security->getString("announceinvites");
 478
 479         if (v == "ops")
 480                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_OPS;
 481         else if (v == "all")
 482                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_ALL;
 483         else if (v == "dynamic")
 484                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_DYNAMIC;
 485         else
 486                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_NONE;
 487
 488         v = security->getString("operspywhois");
 489         if (v == "splitmsg")
 490                 OperSpyWhois = SPYWHOIS_SPLITMSG;
 491         else if (v == "on" || v == "yes")
 492                 OperSpyWhois = SPYWHOIS_SINGLEMSG;
 493         else
 494                 OperSpyWhois = SPYWHOIS_NONE;
 495 }
 496
 497 // WARNING: it is not safe to use most of the codebase in this function, as it
 498 // will run in the config reader thread
 499 void ServerConfig::Read()
 500 {
 501         /* Load and parse the config file, if there are any errors then explode */
 502
 503         ParseStack stack(this);
 504         try
 505         {
 506                 valid = stack.ParseFile(ServerInstance->ConfigFileName, 0);
 507         }
 508         catch (CoreException& err)
 509         {
 510                 valid = false;
 511                 errstr << err.GetReason() << std::endl;
 512         }
 513 }
 514
 515 void ServerConfig::Apply(ServerConfig* old, const std::string &useruid)
 516 {
 517         valid = true;
 518         if (old)
 519         {
 520                 /*
 521                  * These values can only be set on boot. Keep their old values. Do it before we send messages so we actually have a servername.
 522                  */
 523                 this->ServerName = old->ServerName;
 524                 this->sid = old->sid;
 525                 this->cmdline = old->cmdline;
 526         }
 527
 528         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 529         try
 530         {
 531                 for (int index = 0; index * sizeof(DeprecatedConfig) < sizeof(ChangedConfig); index++)
 532                 {
 533                         std::string value;
 534                         ConfigTagList tags = ConfTags(ChangedConfig[index].tag);
 535                         for(ConfigIter i = tags.first; i != tags.second; ++i)
 536                         {
 537                                 if (i->second->readString(ChangedConfig[index].key, value, true)
 538                                         && (ChangedConfig[index].value.empty() || value == ChangedConfig[index].value))
 539                                 {
 540                                         errstr << "Your configuration contains a deprecated value: <"  << ChangedConfig[index].tag;
 541                                         if (ChangedConfig[index].value.empty())
 542                                         {
 543                                                 errstr << ':' << ChangedConfig[index].key;
 544                                         }
 545                                         else
 546                                         {
 547                                                 errstr << ' ' << ChangedConfig[index].key << "=\"" << ChangedConfig[index].value << "\"";
 548                                         }
 549                                         errstr << "> - " << ChangedConfig[index].reason << " (at " << i->second->getTagLocation() << ")" << std::endl;
 550                                 }
 551                         }
 552                 }
 553
 554                 Fill();
 555
 556                 // Handle special items
 557                 CrossCheckOperClassType();
 558                 CrossCheckConnectBlocks(old);
 559         }
 560         catch (CoreException &ce)
 561         {
 562                 errstr << ce.GetReason();
 563         }
 564
 565         // Check errors before dealing with failed binds, since continuing on failed bind is wanted in some circumstances.
 566         valid = errstr.str().empty();
 567
 568         // write once here, to try it out and make sure its ok
 569         if (valid)
 570                 ServerInstance->WritePID(this->PID);
 571
 572         ConfigTagList binds = ConfTags("bind");
 573         if (binds.first == binds.second)
 574                  errstr << "Possible configuration error: you have not defined any <bind> blocks." << std::endl
 575                          << "You will need to do this if you want clients to be able to connect!" << std::endl;
 576
 577         if (old)
 578         {
 579                 // On first run, ports are bound later on
 580                 FailedPortList pl;
 581                 ServerInstance->BindPorts(pl);
 582                 if (pl.size())
 583                 {
 584                         errstr << "Not all your client ports could be bound." << std::endl
 585                                 << "The following port(s) failed to bind:" << std::endl;
 586
 587                         int j = 1;
 588                         for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 589                         {
 590                                 errstr << j << ".\tAddress: " << (i->first.empty() ? "<all>" : i->first.c_str()) << "\tReason: "
 591                                         << i->second << std::endl;
 592                         }
 593                 }
 594         }
 595
 596         User* user = useruid.empty() ? NULL : ServerInstance->FindNick(useruid);
 597
 598         if (!valid)
 599                 ServerInstance->Logs->Log("CONFIG", LOG_DEFAULT, "There were errors in your configuration file:");
 600
 601         while (errstr.good())
 602         {
 603                 std::string line;
 604                 getline(errstr, line, '\n');
 605                 if (line.empty())
 606                         continue;
 607                 // On startup, print out to console (still attached at this point)
 608                 if (!old)
 609                         std::cout << line << std::endl;
 610                 // If a user is rehashing, tell them directly
 611                 if (user)
 612                         user->SendText(":%s NOTICE %s :*** %s", ServerInstance->Config->ServerName.c_str(), user->nick.c_str(), line.c_str());
 613                 // Also tell opers
 614                 ServerInstance->SNO->WriteGlobalSno('a', line);
 615         }
 616
 617         errstr.clear();
 618         errstr.str(std::string());
 619
 620         // Re-parse our MOTD and RULES files for colors -- Justasic
 621         for (ClassVector::const_iterator it = this->Classes.begin(), it_end = this->Classes.end(); it != it_end; ++it)
 622         {
 623                 ConfigTag *tag = (*it)->config;
 624                 // Make sure our connection class allows motd colors
 625                 if(!tag->getBool("allowmotdcolors"))
 626                       continue;
 627
 628                 ConfigFileCache::iterator file = this->Files.find(tag->getString("motd", "motd"));
 629                 if (file != this->Files.end())
 630                       InspIRCd::ProcessColors(file->second);
 631         }
 632
 633         /* No old configuration -> initial boot, nothing more to do here */
 634         if (!old)
 635         {
 636                 if (!valid)
 637                 {
 638                         ServerInstance->Exit(EXIT_STATUS_CONFIG);
 639                 }
 640
 641                 return;
 642         }
 643
 644
 645         // If there were errors processing configuration, don't touch modules.
 646         if (!valid)
 647                 return;
 648
 649         ApplyModules(user);
 650
 651         if (user)
 652                 user->SendText(":%s NOTICE %s :*** Successfully rehashed server.",
 653                         ServerInstance->Config->ServerName.c_str(), user->nick.c_str());
 654         ServerInstance->SNO->WriteGlobalSno('a', "*** Successfully rehashed server.");
 655 }
 656
 657 void ServerConfig::ApplyModules(User* user)
 658 {
 659         std::vector<std::string> added_modules;
 660         ModuleManager::ModuleMap removed_modules = ServerInstance->Modules->GetModules();
 661
 662         ConfigTagList tags = ConfTags("module");
 663         for(ConfigIter i = tags.first; i != tags.second; ++i)
 664         {
 665                 ConfigTag* tag = i->second;
 666                 std::string name;
 667                 if (tag->readString("name", name))
 668                 {
 669                         // if this module is already loaded, the erase will succeed, so we need do nothing
 670                         // otherwise, we need to add the module (which will be done later)
 671                         if (removed_modules.erase(name) == 0)
 672                                 added_modules.push_back(name);
 673                 }
 674         }
 675
 676         for (ModuleManager::ModuleMap::iterator i = removed_modules.begin(); i != removed_modules.end(); ++i)
 677         {
 678                 const std::string& modname = i->first;
 679                 // Don't remove cmd_*.so, just remove m_*.so
 680                 if (modname.c_str()[0] == 'c')
 681                         continue;
 682                 if (ServerInstance->Modules->Unload(i->second))
 683                 {
 684                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH UNLOADED MODULE: %s", modname.c_str());
 685
 686                         if (user)
 687                                 user->WriteNumeric(RPL_UNLOADEDMODULE, "%s :Module %s successfully unloaded.", modname.c_str(), modname.c_str());
 688                         else
 689                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully unloaded.", modname.c_str());
 690                 }
 691                 else
 692                 {
 693                         if (user)
 694                                 user->WriteNumeric(ERR_CANTUNLOADMODULE, "%s :Failed to unload module %s: %s", modname.c_str(), modname.c_str(), ServerInstance->Modules->LastError().c_str());
 695                         else
 696                                  ServerInstance->SNO->WriteGlobalSno('a', "Failed to unload module %s: %s", modname.c_str(), ServerInstance->Modules->LastError().c_str());
 697                 }
 698         }
 699
 700         for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 701         {
 702                 if (ServerInstance->Modules->Load(adding->c_str()))
 703                 {
 704                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH LOADED MODULE: %s",adding->c_str());
 705                         if (user)
 706                                 user->WriteNumeric(RPL_LOADEDMODULE, "%s :Module %s successfully loaded.", adding->c_str(), adding->c_str());
 707                         else
 708                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully loaded.", adding->c_str());
 709                 }
 710                 else
 711                 {
 712                         if (user)
 713                                 user->WriteNumeric(ERR_CANTLOADMODULE, "%s :Failed to load module %s: %s", adding->c_str(), adding->c_str(), ServerInstance->Modules->LastError().c_str());
 714                         else
 715                                 ServerInstance->SNO->WriteGlobalSno('a', "Failed to load module %s: %s", adding->c_str(), ServerInstance->Modules->LastError().c_str());
 716                 }
 717         }
 718 }
 719
 720 ConfigTag* ServerConfig::ConfValue(const std::string &tag)
 721 {
 722         ConfigTagList found = config_data.equal_range(tag);
 723         if (found.first == found.second)
 724                 return NULL;
 725         ConfigTag* rv = found.first->second;
 726         found.first++;
 727         if (found.first != found.second)
 728                 ServerInstance->Logs->Log("CONFIG", LOG_DEFAULT, "Multiple <" + tag + "> tags found; only first will be used "
 729                         "(first at " + rv->getTagLocation() + "; second at " + found.first->second->getTagLocation() + ")");
 730         return rv;
 731 }
 732
 733 ConfigTagList ServerConfig::ConfTags(const std::string& tag)
 734 {
 735         return config_data.equal_range(tag);
 736 }
 737
 738 std::string ServerConfig::Escape(const std::string& str, bool xml)
 739 {
 740         std::string escaped;
 741         for (std::string::const_iterator it = str.begin(); it != str.end(); ++it)
 742         {
 743                 switch (*it)
 744                 {
 745                         case '"':
 746                                 escaped += xml ? "&quot;" : "\"";
 747                                 break;
 748                         case '&':
 749                                 escaped += xml ? "&amp;" : "&";
 750                                 break;
 751                         case '\\':
 752                                 escaped += xml ? "\\" : "\\\\";
 753                                 break;
 754                         default:
 755                                 escaped += *it;
 756                                 break;
 757                 }
 758         }
 759         return escaped;
 760 }
 761
 762 void ConfigReaderThread::Run()
 763 {
 764         Config->Read();
 765         done = true;
 766 }
 767
 768 void ConfigReaderThread::Finish()
 769 {
 770         ServerConfig* old = ServerInstance->Config;
 771         ServerInstance->Logs->Log("CONFIG", LOG_DEBUG, "Switching to new configuration...");
 772         ServerInstance->Config = this->Config;
 773         Config->Apply(old, TheUserUID);
 774
 775         if (Config->valid)
 776         {
 777                 /*
 778                  * Apply the changed configuration from the rehash.
 779                  *
 780                  * XXX: The order of these is IMPORTANT, do not reorder them without testing
 781                  * thoroughly!!!
 782                  */
 783                 ServerInstance->XLines->CheckELines();
 784                 ServerInstance->XLines->ApplyLines();
 785                 ChanModeReference ban(NULL, "ban");
 786                 static_cast<ListModeBase*>(*ban)->DoRehash();
 787                 Config->ApplyDisabledCommands(Config->DisabledCommands);
 788                 User* user = ServerInstance->FindNick(TheUserUID);
 789
 790                 ConfigStatus status(user);
 791                 const ModuleManager::ModuleMap& mods = ServerInstance->Modules->GetModules();
 792                 for (ModuleManager::ModuleMap::const_iterator i = mods.begin(); i != mods.end(); ++i)
 793                         i->second->ReadConfig(status);
 794
 795                 ServerInstance->ISupport.Build();
 796
 797                 ServerInstance->Logs->CloseLogs();
 798                 ServerInstance->Logs->OpenFileLogs();
 799
 800                 if (Config->RawLog && !old->RawLog)
 801                         ServerInstance->Users->ServerNoticeAll("*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.");
 802
 803                 Config = old;
 804         }
 805         else
 806         {
 807                 // whoops, abort!
 808                 ServerInstance->Config = old;
 809         }
 810 }