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         { "gnutls",      "starttls",    "",                 "has been replaced with m_starttls as of 2.2" },
 339         { "link",        "autoconnect", "",                 "2.0+ does not use this attribute - define <autoconnect> tags instead" },
 340         { "link",        "transport",   "",                 "has been moved to <link:ssl> as of 2.0" },
 341         { "module",      "name",        "m_chanprotect.so", "has been replaced with m_customprefix as of 2.2" },
 342         { "module",      "name",        "m_halfop.so",      "has been replaced with m_customprefix as of 2.2" },
 343         { "options",     "cyclehosts",  "",                 "has been replaced with m_hostcycle as of 2.2" },
 344         { "performance", "nouserdns",   "",                 "has been moved to <connect:resolvehostnames> as of 2.2" }
 345 };
 346
 347 void ServerConfig::Fill()
 348 {
 349         ConfigTag* options = ConfValue("options");
 350         ConfigTag* security = ConfValue("security");
 351         if (sid.empty())
 352         {
 353                 ServerName = ConfValue("server")->getString("name", "irc.example.com");
 354                 ValidHost(ServerName, "<server:name>");
 355
 356                 sid = ConfValue("server")->getString("id");
 357                 if (!sid.empty() && !InspIRCd::IsSID(sid))
 358                         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.");
 359         }
 360         else
 361         {
 362                 if (ServerName != ConfValue("server")->getString("name"))
 363                         throw CoreException("You must restart to change the server name");
 364
 365                 std::string nsid = ConfValue("server")->getString("id");
 366                 if (!nsid.empty() && nsid != sid)
 367                         throw CoreException("You must restart to change the server id");
 368         }
 369         diepass = ConfValue("power")->getString("diepass");
 370         restartpass = ConfValue("power")->getString("restartpass");
 371         powerhash = ConfValue("power")->getString("hash");
 372         PrefixQuit = options->getString("prefixquit");
 373         SuffixQuit = options->getString("suffixquit");
 374         FixedQuit = options->getString("fixedquit");
 375         PrefixPart = options->getString("prefixpart");
 376         SuffixPart = options->getString("suffixpart");
 377         FixedPart = options->getString("fixedpart");
 378         SoftLimit = ConfValue("performance")->getInt("softlimit", ServerInstance->SE->GetMaxFds(), 10, ServerInstance->SE->GetMaxFds());
 379         CCOnConnect = ConfValue("performance")->getBool("clonesonconnect", true);
 380         MaxConn = ConfValue("performance")->getInt("somaxconn", SOMAXCONN);
 381         XLineMessage = options->getString("xlinemessage", options->getString("moronbanner", "You're banned!"));
 382         ServerDesc = ConfValue("server")->getString("description", "Configure Me");
 383         Network = ConfValue("server")->getString("network", "Network");
 384         AdminName = ConfValue("admin")->getString("name", "");
 385         AdminEmail = ConfValue("admin")->getString("email", "null@example.com");
 386         AdminNick = ConfValue("admin")->getString("nick", "admin");
 387         NetBufferSize = ConfValue("performance")->getInt("netbuffersize", 10240, 1024, 65534);
 388         dns_timeout = ConfValue("dns")->getInt("timeout", 5);
 389         DisabledCommands = ConfValue("disabled")->getString("commands", "");
 390         DisabledDontExist = ConfValue("disabled")->getBool("fakenonexistant");
 391         UserStats = security->getString("userstats");
 392         CustomVersion = security->getString("customversion");
 393         HideSplits = security->getBool("hidesplits");
 394         HideBans = security->getBool("hidebans");
 395         HideWhoisServer = security->getString("hidewhois");
 396         HideKillsServer = security->getString("hidekills");
 397         RestrictBannedUsers = security->getBool("restrictbannedusers", true);
 398         GenericOper = security->getBool("genericoper");
 399         SyntaxHints = options->getBool("syntaxhints");
 400         CycleHostsFromUser = options->getBool("cyclehostsfromuser");
 401         UndernetMsgPrefix = options->getBool("ircumsgprefix");
 402         FullHostInTopic = options->getBool("hostintopic");
 403         MaxTargets = security->getInt("maxtargets", 20, 1, 31);
 404         DefaultModes = options->getString("defaultmodes", "not");
 405         PID = ConfValue("pid")->getString("file");
 406         MaxChans = ConfValue("channels")->getInt("users", 20);
 407         OperMaxChans = ConfValue("channels")->getInt("opers", 60);
 408         c_ipv4_range = ConfValue("cidr")->getInt("ipv4clone", 32);
 409         c_ipv6_range = ConfValue("cidr")->getInt("ipv6clone", 128);
 410         Limits.NickMax = ConfValue("limits")->getInt("maxnick", 32);
 411         Limits.ChanMax = ConfValue("limits")->getInt("maxchan", 64);
 412         Limits.MaxModes = ConfValue("limits")->getInt("maxmodes", 20);
 413         Limits.IdentMax = ConfValue("limits")->getInt("maxident", 11);
 414         Limits.MaxQuit = ConfValue("limits")->getInt("maxquit", 255);
 415         Limits.MaxTopic = ConfValue("limits")->getInt("maxtopic", 307);
 416         Limits.MaxKick = ConfValue("limits")->getInt("maxkick", 255);
 417         Limits.MaxGecos = ConfValue("limits")->getInt("maxgecos", 128);
 418         Limits.MaxAway = ConfValue("limits")->getInt("maxaway", 200);
 419         Limits.MaxLine = ConfValue("limits")->getInt("maxline", 512);
 420         Paths.Config = ConfValue("path")->getString("configdir", CONFIG_PATH);
 421         Paths.Data = ConfValue("path")->getString("datadir", DATA_PATH);
 422         Paths.Log = ConfValue("path")->getString("logdir", LOG_PATH);
 423         Paths.Module = ConfValue("path")->getString("moduledir", MOD_PATH);
 424         InvBypassModes = options->getBool("invitebypassmodes", true);
 425         NoSnoticeStack = options->getBool("nosnoticestack", false);
 426
 427         if (Network.find(' ') != std::string::npos)
 428                 throw CoreException(Network + " is not a valid network name. A network name must not contain spaces.");
 429
 430         std::string defbind = options->getString("defaultbind");
 431         if (assign(defbind) == "ipv4")
 432         {
 433                 WildcardIPv6 = false;
 434         }
 435         else if (assign(defbind) == "ipv6")
 436         {
 437                 WildcardIPv6 = true;
 438         }
 439         else
 440         {
 441                 WildcardIPv6 = true;
 442                 int socktest = socket(AF_INET6, SOCK_STREAM, 0);
 443                 if (socktest < 0)
 444                         WildcardIPv6 = false;
 445                 else
 446                         SocketEngine::Close(socktest);
 447         }
 448
 449         ReadXLine(this, "badip", "ipmask", ServerInstance->XLines->GetFactory("Z"));
 450         ReadXLine(this, "badnick", "nick", ServerInstance->XLines->GetFactory("Q"));
 451         ReadXLine(this, "badhost", "host", ServerInstance->XLines->GetFactory("K"));
 452         ReadXLine(this, "exception", "host", ServerInstance->XLines->GetFactory("E"));
 453
 454         memset(DisabledUModes, 0, sizeof(DisabledUModes));
 455         std::string modes = ConfValue("disabled")->getString("usermodes");
 456         for (std::string::const_iterator p = modes.begin(); p != modes.end(); ++p)
 457         {
 458                 // Complain when the character is not a-z or A-Z
 459                 if ((*p < 'A') || (*p > 'z') || ((*p < 'a') && (*p > 'Z')))
 460                         throw CoreException("Invalid usermode " + std::string(1, *p) + " was found.");
 461                 DisabledUModes[*p - 'A'] = 1;
 462         }
 463
 464         memset(DisabledCModes, 0, sizeof(DisabledCModes));
 465         modes = ConfValue("disabled")->getString("chanmodes");
 466         for (std::string::const_iterator p = modes.begin(); p != modes.end(); ++p)
 467         {
 468                 if ((*p < 'A') || (*p > 'z') || ((*p < 'a') && (*p > 'Z')))
 469                         throw CoreException("Invalid chanmode " + std::string(1, *p) + " was found.");
 470                 DisabledCModes[*p - 'A'] = 1;
 471         }
 472
 473         memset(HideModeLists, 0, sizeof(HideModeLists));
 474         modes = ConfValue("security")->getString("hidemodes");
 475         for (std::string::const_iterator p = modes.begin(); p != modes.end(); ++p)
 476                 HideModeLists[(unsigned char) *p] = true;
 477
 478         std::string v = security->getString("announceinvites");
 479
 480         if (v == "ops")
 481                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_OPS;
 482         else if (v == "all")
 483                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_ALL;
 484         else if (v == "dynamic")
 485                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_DYNAMIC;
 486         else
 487                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_NONE;
 488
 489         v = security->getString("operspywhois");
 490         if (v == "splitmsg")
 491                 OperSpyWhois = SPYWHOIS_SPLITMSG;
 492         else if (v == "on" || v == "yes")
 493                 OperSpyWhois = SPYWHOIS_SINGLEMSG;
 494         else
 495                 OperSpyWhois = SPYWHOIS_NONE;
 496 }
 497
 498 // WARNING: it is not safe to use most of the codebase in this function, as it
 499 // will run in the config reader thread
 500 void ServerConfig::Read()
 501 {
 502         /* Load and parse the config file, if there are any errors then explode */
 503
 504         ParseStack stack(this);
 505         try
 506         {
 507                 valid = stack.ParseFile(ServerInstance->ConfigFileName, 0);
 508         }
 509         catch (CoreException& err)
 510         {
 511                 valid = false;
 512                 errstr << err.GetReason() << std::endl;
 513         }
 514 }
 515
 516 void ServerConfig::Apply(ServerConfig* old, const std::string &useruid)
 517 {
 518         valid = true;
 519         if (old)
 520         {
 521                 /*
 522                  * These values can only be set on boot. Keep their old values. Do it before we send messages so we actually have a servername.
 523                  */
 524                 this->ServerName = old->ServerName;
 525                 this->sid = old->sid;
 526                 this->cmdline = old->cmdline;
 527         }
 528
 529         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 530         try
 531         {
 532                 for (int index = 0; index * sizeof(DeprecatedConfig) < sizeof(ChangedConfig); index++)
 533                 {
 534                         std::string value;
 535                         ConfigTagList tags = ConfTags(ChangedConfig[index].tag);
 536                         for(ConfigIter i = tags.first; i != tags.second; ++i)
 537                         {
 538                                 if (i->second->readString(ChangedConfig[index].key, value, true)
 539                                         && (ChangedConfig[index].value.empty() || value == ChangedConfig[index].value))
 540                                 {
 541                                         errstr << "Your configuration contains a deprecated value: <"  << ChangedConfig[index].tag;
 542                                         if (ChangedConfig[index].value.empty())
 543                                         {
 544                                                 errstr << ':' << ChangedConfig[index].key;
 545                                         }
 546                                         else
 547                                         {
 548                                                 errstr << ' ' << ChangedConfig[index].key << "=\"" << ChangedConfig[index].value << "\"";
 549                                         }
 550                                         errstr << "> - " << ChangedConfig[index].reason << " (at " << i->second->getTagLocation() << ")" << std::endl;
 551                                 }
 552                         }
 553                 }
 554
 555                 Fill();
 556
 557                 // Handle special items
 558                 CrossCheckOperClassType();
 559                 CrossCheckConnectBlocks(old);
 560         }
 561         catch (CoreException &ce)
 562         {
 563                 errstr << ce.GetReason();
 564         }
 565
 566         // Check errors before dealing with failed binds, since continuing on failed bind is wanted in some circumstances.
 567         valid = errstr.str().empty();
 568
 569         // write once here, to try it out and make sure its ok
 570         if (valid)
 571                 ServerInstance->WritePID(this->PID);
 572
 573         ConfigTagList binds = ConfTags("bind");
 574         if (binds.first == binds.second)
 575                  errstr << "Possible configuration error: you have not defined any <bind> blocks." << std::endl
 576                          << "You will need to do this if you want clients to be able to connect!" << std::endl;
 577
 578         if (old)
 579         {
 580                 // On first run, ports are bound later on
 581                 FailedPortList pl;
 582                 ServerInstance->BindPorts(pl);
 583                 if (pl.size())
 584                 {
 585                         errstr << "Not all your client ports could be bound." << std::endl
 586                                 << "The following port(s) failed to bind:" << std::endl;
 587
 588                         int j = 1;
 589                         for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 590                         {
 591                                 errstr << j << ".\tAddress: " << (i->first.empty() ? "<all>" : i->first.c_str()) << "\tReason: "
 592                                         << i->second << std::endl;
 593                         }
 594                 }
 595         }
 596
 597         User* user = useruid.empty() ? NULL : ServerInstance->FindNick(useruid);
 598
 599         if (!valid)
 600                 ServerInstance->Logs->Log("CONFIG", LOG_DEFAULT, "There were errors in your configuration file:");
 601
 602         while (errstr.good())
 603         {
 604                 std::string line;
 605                 getline(errstr, line, '\n');
 606                 if (line.empty())
 607                         continue;
 608                 // On startup, print out to console (still attached at this point)
 609                 if (!old)
 610                         std::cout << line << std::endl;
 611                 // If a user is rehashing, tell them directly
 612                 if (user)
 613                         user->SendText(":%s NOTICE %s :*** %s", ServerInstance->Config->ServerName.c_str(), user->nick.c_str(), line.c_str());
 614                 // Also tell opers
 615                 ServerInstance->SNO->WriteGlobalSno('a', line);
 616         }
 617
 618         errstr.clear();
 619         errstr.str(std::string());
 620
 621         // Re-parse our MOTD and RULES files for colors -- Justasic
 622         for (ClassVector::const_iterator it = this->Classes.begin(), it_end = this->Classes.end(); it != it_end; ++it)
 623         {
 624                 ConfigTag *tag = (*it)->config;
 625                 // Make sure our connection class allows motd colors
 626                 if(!tag->getBool("allowmotdcolors"))
 627                       continue;
 628
 629                 ConfigFileCache::iterator file = this->Files.find(tag->getString("motd", "motd"));
 630                 if (file != this->Files.end())
 631                       InspIRCd::ProcessColors(file->second);
 632         }
 633
 634         /* No old configuration -> initial boot, nothing more to do here */
 635         if (!old)
 636         {
 637                 if (!valid)
 638                 {
 639                         ServerInstance->Exit(EXIT_STATUS_CONFIG);
 640                 }
 641
 642                 return;
 643         }
 644
 645
 646         // If there were errors processing configuration, don't touch modules.
 647         if (!valid)
 648                 return;
 649
 650         ApplyModules(user);
 651
 652         if (user)
 653                 user->SendText(":%s NOTICE %s :*** Successfully rehashed server.",
 654                         ServerInstance->Config->ServerName.c_str(), user->nick.c_str());
 655         ServerInstance->SNO->WriteGlobalSno('a', "*** Successfully rehashed server.");
 656 }
 657
 658 void ServerConfig::ApplyModules(User* user)
 659 {
 660         std::vector<std::string> added_modules;
 661         ModuleManager::ModuleMap removed_modules = ServerInstance->Modules->GetModules();
 662
 663         ConfigTagList tags = ConfTags("module");
 664         for(ConfigIter i = tags.first; i != tags.second; ++i)
 665         {
 666                 ConfigTag* tag = i->second;
 667                 std::string name;
 668                 if (tag->readString("name", name))
 669                 {
 670                         // if this module is already loaded, the erase will succeed, so we need do nothing
 671                         // otherwise, we need to add the module (which will be done later)
 672                         if (removed_modules.erase(name) == 0)
 673                                 added_modules.push_back(name);
 674                 }
 675         }
 676
 677         for (ModuleManager::ModuleMap::iterator i = removed_modules.begin(); i != removed_modules.end(); ++i)
 678         {
 679                 const std::string& modname = i->first;
 680                 // Don't remove cmd_*.so, just remove m_*.so
 681                 if (modname.c_str()[0] == 'c')
 682                         continue;
 683                 if (ServerInstance->Modules->Unload(i->second))
 684                 {
 685                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH UNLOADED MODULE: %s", modname.c_str());
 686
 687                         if (user)
 688                                 user->WriteNumeric(RPL_UNLOADEDMODULE, "%s :Module %s successfully unloaded.", modname.c_str(), modname.c_str());
 689                         else
 690                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully unloaded.", modname.c_str());
 691                 }
 692                 else
 693                 {
 694                         if (user)
 695                                 user->WriteNumeric(ERR_CANTUNLOADMODULE, "%s :Failed to unload module %s: %s", modname.c_str(), modname.c_str(), ServerInstance->Modules->LastError().c_str());
 696                         else
 697                                  ServerInstance->SNO->WriteGlobalSno('a', "Failed to unload module %s: %s", modname.c_str(), ServerInstance->Modules->LastError().c_str());
 698                 }
 699         }
 700
 701         for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 702         {
 703                 if (ServerInstance->Modules->Load(adding->c_str()))
 704                 {
 705                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH LOADED MODULE: %s",adding->c_str());
 706                         if (user)
 707                                 user->WriteNumeric(RPL_LOADEDMODULE, "%s :Module %s successfully loaded.", adding->c_str(), adding->c_str());
 708                         else
 709                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully loaded.", adding->c_str());
 710                 }
 711                 else
 712                 {
 713                         if (user)
 714                                 user->WriteNumeric(ERR_CANTLOADMODULE, "%s :Failed to load module %s: %s", adding->c_str(), adding->c_str(), ServerInstance->Modules->LastError().c_str());
 715                         else
 716                                 ServerInstance->SNO->WriteGlobalSno('a', "Failed to load module %s: %s", adding->c_str(), ServerInstance->Modules->LastError().c_str());
 717                 }
 718         }
 719 }
 720
 721 ConfigTag* ServerConfig::ConfValue(const std::string &tag)
 722 {
 723         ConfigTagList found = config_data.equal_range(tag);
 724         if (found.first == found.second)
 725                 return NULL;
 726         ConfigTag* rv = found.first->second;
 727         found.first++;
 728         if (found.first != found.second)
 729                 ServerInstance->Logs->Log("CONFIG", LOG_DEFAULT, "Multiple <" + tag + "> tags found; only first will be used "
 730                         "(first at " + rv->getTagLocation() + "; second at " + found.first->second->getTagLocation() + ")");
 731         return rv;
 732 }
 733
 734 ConfigTagList ServerConfig::ConfTags(const std::string& tag)
 735 {
 736         return config_data.equal_range(tag);
 737 }
 738
 739 std::string ServerConfig::Escape(const std::string& str, bool xml)
 740 {
 741         std::string escaped;
 742         for (std::string::const_iterator it = str.begin(); it != str.end(); ++it)
 743         {
 744                 switch (*it)
 745                 {
 746                         case '"':
 747                                 escaped += xml ? "&quot;" : "\"";
 748                                 break;
 749                         case '&':
 750                                 escaped += xml ? "&amp;" : "&";
 751                                 break;
 752                         case '\\':
 753                                 escaped += xml ? "\\" : "\\\\";
 754                                 break;
 755                         default:
 756                                 escaped += *it;
 757                                 break;
 758                 }
 759         }
 760         return escaped;
 761 }
 762
 763 void ConfigReaderThread::Run()
 764 {
 765         Config->Read();
 766         done = true;
 767 }
 768
 769 void ConfigReaderThread::Finish()
 770 {
 771         ServerConfig* old = ServerInstance->Config;
 772         ServerInstance->Logs->Log("CONFIG", LOG_DEBUG, "Switching to new configuration...");
 773         ServerInstance->Config = this->Config;
 774         Config->Apply(old, TheUserUID);
 775
 776         if (Config->valid)
 777         {
 778                 /*
 779                  * Apply the changed configuration from the rehash.
 780                  *
 781                  * XXX: The order of these is IMPORTANT, do not reorder them without testing
 782                  * thoroughly!!!
 783                  */
 784                 ServerInstance->XLines->CheckELines();
 785                 ServerInstance->XLines->ApplyLines();
 786                 ChanModeReference ban(NULL, "ban");
 787                 static_cast<ListModeBase*>(*ban)->DoRehash();
 788                 Config->ApplyDisabledCommands(Config->DisabledCommands);
 789                 User* user = ServerInstance->FindNick(TheUserUID);
 790
 791                 ConfigStatus status(user);
 792                 const ModuleManager::ModuleMap& mods = ServerInstance->Modules->GetModules();
 793                 for (ModuleManager::ModuleMap::const_iterator i = mods.begin(); i != mods.end(); ++i)
 794                         i->second->ReadConfig(status);
 795
 796                 ServerInstance->ISupport.Build();
 797
 798                 ServerInstance->Logs->CloseLogs();
 799                 ServerInstance->Logs->OpenFileLogs();
 800
 801                 if (Config->RawLog && !old->RawLog)
 802                         ServerInstance->Users->ServerNoticeAll("*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.");
 803
 804                 Config = old;
 805         }
 806         else
 807         {
 808                 // whoops, abort!
 809                 ServerInstance->Config = old;
 810         }
 811 }