src/configreader.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
   5  *   Copyright (C) 2007-2009 Robin Burchell <robin+git@viroteck.net>
   6  *   Copyright (C) 2006-2009 Dennis Friis <peavey@inspircd.org>
   7  *   Copyright (C) 2006-2008 Craig Edwards <craigedwards@brainbox.cc>
   8  *   Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
   9  *   Copyright (C) 2006 Oliver Lupton <oliverlupton@gmail.com>
  10  *
  11  * This file is part of InspIRCd.  InspIRCd is free software: you can
  12  * redistribute it and/or modify it under the terms of the GNU General Public
  13  * License as published by the Free Software Foundation, version 2.
  14  *
  15  * This program is distributed in the hope that it will be useful, but WITHOUT
  16  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  17  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  18  * details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24
  25 #include "inspircd.h"
  26 #include "xline.h"
  27 #include "listmode.h"
  28 #include "exitcodes.h"
  29 #include "configparser.h"
  30 #include <iostream>
  31
  32 ServerConfig::ServerConfig()
  33 {
  34         RawLog = HideBans = HideSplits = UndernetMsgPrefix = false;
  35         WildcardIPv6 = InvBypassModes = true;
  36         dns_timeout = 5;
  37         MaxTargets = 20;
  38         NetBufferSize = 10240;
  39         MaxConn = SOMAXCONN;
  40         MaxChans = 20;
  41         OperMaxChans = 30;
  42         c_ipv4_range = 32;
  43         c_ipv6_range = 128;
  44 }
  45
  46 static void ValidHost(const std::string& p, const std::string& msg)
  47 {
  48         int num_dots = 0;
  49         if (p.empty() || p[0] == '.')
  50                 throw CoreException("The value of "+msg+" is not a valid hostname");
  51         for (unsigned int i=0;i < p.length();i++)
  52         {
  53                 switch (p[i])
  54                 {
  55                         case ' ':
  56                                 throw CoreException("The value of "+msg+" is not a valid hostname");
  57                         case '.':
  58                                 num_dots++;
  59                         break;
  60                 }
  61         }
  62         if (num_dots == 0)
  63                 throw CoreException("The value of "+msg+" is not a valid hostname");
  64 }
  65
  66 bool ServerConfig::ApplyDisabledCommands(const std::string& data)
  67 {
  68         std::stringstream dcmds(data);
  69         std::string thiscmd;
  70
  71         /* Enable everything first */
  72         for (Commandtable::iterator x = ServerInstance->Parser->cmdlist.begin(); x != ServerInstance->Parser->cmdlist.end(); x++)
  73                 x->second->Disable(false);
  74
  75         /* Now disable all the ones which the user wants disabled */
  76         while (dcmds >> thiscmd)
  77         {
  78                 Commandtable::iterator cm = ServerInstance->Parser->cmdlist.find(thiscmd);
  79                 if (cm != ServerInstance->Parser->cmdlist.end())
  80                 {
  81                         cm->second->Disable(true);
  82                 }
  83         }
  84         return true;
  85 }
  86
  87 static void ReadXLine(ServerConfig* conf, const std::string& tag, const std::string& key, XLineFactory* make)
  88 {
  89         ConfigTagList tags = conf->ConfTags(tag);
  90         for(ConfigIter i = tags.first; i != tags.second; ++i)
  91         {
  92                 ConfigTag* ctag = i->second;
  93                 std::string mask;
  94                 if (!ctag->readString(key, mask))
  95                         throw CoreException("<"+tag+":"+key+"> missing at " + ctag->getTagLocation());
  96                 std::string reason = ctag->getString("reason", "<Config>");
  97                 XLine* xl = make->Generate(ServerInstance->Time(), 0, "<Config>", reason, mask);
  98                 if (!ServerInstance->XLines->AddLine(xl, NULL))
  99                         delete xl;
 100         }
 101 }
 102
 103 typedef std::map<std::string, ConfigTag*> LocalIndex;
 104 void ServerConfig::CrossCheckOperClassType()
 105 {
 106         LocalIndex operclass;
 107         ConfigTagList tags = ConfTags("class");
 108         for(ConfigIter i = tags.first; i != tags.second; ++i)
 109         {
 110                 ConfigTag* tag = i->second;
 111                 std::string name = tag->getString("name");
 112                 if (name.empty())
 113                         throw CoreException("<class:name> missing from tag at " + tag->getTagLocation());
 114                 if (operclass.find(name) != operclass.end())
 115                         throw CoreException("Duplicate class block with name " + name + " at " + tag->getTagLocation());
 116                 operclass[name] = tag;
 117         }
 118         tags = ConfTags("type");
 119         for(ConfigIter i = tags.first; i != tags.second; ++i)
 120         {
 121                 ConfigTag* tag = i->second;
 122                 std::string name = tag->getString("name");
 123                 if (name.empty())
 124                         throw CoreException("<type:name> is missing from tag at " + tag->getTagLocation());
 125                 if (OperTypes.find(name) != OperTypes.end())
 126                         throw CoreException("Duplicate type block with name " + name + " at " + tag->getTagLocation());
 127
 128                 OperInfo* ifo = new OperInfo;
 129                 OperTypes[name] = ifo;
 130                 ifo->name = name;
 131                 ifo->type_block = tag;
 132
 133                 std::string classname;
 134                 irc::spacesepstream str(tag->getString("classes"));
 135                 while (str.GetToken(classname))
 136                 {
 137                         LocalIndex::iterator cls = operclass.find(classname);
 138                         if (cls == operclass.end())
 139                                 throw CoreException("Oper type " + name + " has missing class " + classname);
 140                         ifo->class_blocks.push_back(cls->second);
 141                 }
 142         }
 143
 144         tags = ConfTags("oper");
 145         for(ConfigIter i = tags.first; i != tags.second; ++i)
 146         {
 147                 ConfigTag* tag = i->second;
 148
 149                 std::string name = tag->getString("name");
 150                 if (name.empty())
 151                         throw CoreException("<oper:name> missing from tag at " + tag->getTagLocation());
 152
 153                 std::string type = tag->getString("type");
 154                 OperIndex::iterator tblk = OperTypes.find(type);
 155                 if (tblk == OperTypes.end())
 156                         throw CoreException("Oper block " + name + " has missing type " + type);
 157                 if (oper_blocks.find(name) != oper_blocks.end())
 158                         throw CoreException("Duplicate oper block with name " + name + " at " + tag->getTagLocation());
 159
 160                 OperInfo* ifo = new OperInfo;
 161                 ifo->name = type;
 162                 ifo->oper_block = tag;
 163                 ifo->type_block = tblk->second->type_block;
 164                 ifo->class_blocks.assign(tblk->second->class_blocks.begin(), tblk->second->class_blocks.end());
 165                 oper_blocks[name] = ifo;
 166         }
 167 }
 168
 169 void ServerConfig::CrossCheckConnectBlocks(ServerConfig* current)
 170 {
 171         typedef std::map<std::string, ConnectClass*> ClassMap;
 172         ClassMap oldBlocksByMask;
 173         if (current)
 174         {
 175                 for(ClassVector::iterator i = current->Classes.begin(); i != current->Classes.end(); ++i)
 176                 {
 177                         ConnectClass* c = *i;
 178                         if (c->name.compare(0, 8, "unnamed-", 8))
 179                         {
 180                                 oldBlocksByMask["n" + c->name] = c;
 181                         }
 182                         else if (c->type == CC_ALLOW || c->type == CC_DENY)
 183                         {
 184                                 std::string typeMask = (c->type == CC_ALLOW) ? "a" : "d";
 185                                 typeMask += c->host;
 186                                 oldBlocksByMask[typeMask] = c;
 187                         }
 188                 }
 189         }
 190
 191         int blk_count = config_data.count("connect");
 192         if (blk_count == 0)
 193         {
 194                 // No connect blocks found; make a trivial default block
 195                 std::vector<KeyVal>* items;
 196                 ConfigTag* tag = ConfigTag::create("connect", "<auto>", 0, items);
 197                 items->push_back(std::make_pair("allow", "*"));
 198                 config_data.insert(std::make_pair("connect", tag));
 199                 blk_count = 1;
 200         }
 201
 202         Classes.resize(blk_count);
 203         std::map<std::string, int> names;
 204
 205         bool try_again = true;
 206         for(int tries=0; try_again; tries++)
 207         {
 208                 try_again = false;
 209                 ConfigTagList tags = ConfTags("connect");
 210                 int i=0;
 211                 for(ConfigIter it = tags.first; it != tags.second; ++it, ++i)
 212                 {
 213                         ConfigTag* tag = it->second;
 214                         if (Classes[i])
 215                                 continue;
 216
 217                         ConnectClass* parent = NULL;
 218                         std::string parentName = tag->getString("parent");
 219                         if (!parentName.empty())
 220                         {
 221                                 std::map<std::string,int>::iterator parentIter = names.find(parentName);
 222                                 if (parentIter == names.end())
 223                                 {
 224                                         try_again = true;
 225                                         // couldn't find parent this time. If it's the last time, we'll never find it.
 226                                         if (tries >= blk_count)
 227                                                 throw CoreException("Could not find parent connect class \"" + parentName + "\" for connect block at " + tag->getTagLocation());
 228                                         continue;
 229                                 }
 230                                 parent = Classes[parentIter->second];
 231                         }
 232
 233                         std::string name = tag->getString("name");
 234                         std::string mask, typeMask;
 235                         char type;
 236
 237                         if (tag->readString("allow", mask, false))
 238                         {
 239                                 type = CC_ALLOW;
 240                                 typeMask = 'a' + mask;
 241                         }
 242                         else if (tag->readString("deny", mask, false))
 243                         {
 244                                 type = CC_DENY;
 245                                 typeMask = 'd' + mask;
 246                         }
 247                         else if (!name.empty())
 248                         {
 249                                 type = CC_NAMED;
 250                                 mask = name;
 251                                 typeMask = 'n' + mask;
 252                         }
 253                         else
 254                         {
 255                                 throw CoreException("Connect class must have allow, deny, or name specified at " + tag->getTagLocation());
 256                         }
 257
 258                         if (name.empty())
 259                         {
 260                                 name = "unnamed-" + ConvToStr(i);
 261                         }
 262                         else
 263                         {
 264                                 typeMask = 'n' + name;
 265                         }
 266
 267                         if (names.find(name) != names.end())
 268                                 throw CoreException("Two connect classes with name \"" + name + "\" defined!");
 269                         names[name] = i;
 270
 271                         ConnectClass* me = parent ?
 272                                 new ConnectClass(tag, type, mask, *parent) :
 273                                 new ConnectClass(tag, type, mask);
 274
 275                         me->name = name;
 276
 277                         me->registration_timeout = tag->getInt("timeout", me->registration_timeout);
 278                         me->pingtime = tag->getInt("pingfreq", me->pingtime);
 279                         std::string sendq;
 280                         if (tag->readString("sendq", sendq))
 281                         {
 282                                 // attempt to guess a good hard/soft sendq from a single value
 283                                 long value = atol(sendq.c_str());
 284                                 if (value > 16384)
 285                                         me->softsendqmax = value / 16;
 286                                 else
 287                                         me->softsendqmax = value;
 288                                 me->hardsendqmax = value * 8;
 289                         }
 290                         me->softsendqmax = tag->getInt("softsendq", me->softsendqmax);
 291                         me->hardsendqmax = tag->getInt("hardsendq", me->hardsendqmax);
 292                         me->recvqmax = tag->getInt("recvq", me->recvqmax);
 293                         me->penaltythreshold = tag->getInt("threshold", me->penaltythreshold);
 294                         me->commandrate = tag->getInt("commandrate", me->commandrate);
 295                         me->fakelag = tag->getBool("fakelag", me->fakelag);
 296                         me->maxlocal = tag->getInt("localmax", me->maxlocal);
 297                         me->maxglobal = tag->getInt("globalmax", me->maxglobal);
 298                         me->maxchans = tag->getInt("maxchans", me->maxchans);
 299                         me->maxconnwarn = tag->getBool("maxconnwarn", me->maxconnwarn);
 300                         me->limit = tag->getInt("limit", me->limit);
 301                         me->resolvehostnames = tag->getBool("resolvehostnames", me->resolvehostnames);
 302
 303                         ClassMap::iterator oldMask = oldBlocksByMask.find(typeMask);
 304                         if (oldMask != oldBlocksByMask.end())
 305                         {
 306                                 ConnectClass* old = oldMask->second;
 307                                 oldBlocksByMask.erase(oldMask);
 308                                 old->Update(me);
 309                                 delete me;
 310                                 me = old;
 311                         }
 312                         Classes[i] = me;
 313                 }
 314         }
 315 }
 316
 317 /** Represents a deprecated configuration tag.
 318  */
 319 struct DeprecatedConfig
 320 {
 321         /** Tag name. */
 322         std::string tag;
 323
 324         /** Attribute key. */
 325         std::string key;
 326
 327         /** Attribute value. */
 328         std::string value;
 329
 330         /** Reason for deprecation. */
 331         std::string reason;
 332 };
 333
 334 static const DeprecatedConfig ChangedConfig[] = {
 335         { "bind",        "transport",   "",                 "has been moved to <bind:ssl> as of 2.0" },
 336         { "die",         "value",       "",                 "you need to reread your config" },
 337         { "gnutls",      "starttls",    "",                 "has been replaced with m_starttls as of 2.2" },
 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         SoftLimit = ConfValue("performance")->getInt("softlimit", (SocketEngine::GetMaxFds() > 0 ? SocketEngine::GetMaxFds() : LONG_MAX), 10);
 369         CCOnConnect = ConfValue("performance")->getBool("clonesonconnect", true);
 370         MaxConn = ConfValue("performance")->getInt("somaxconn", SOMAXCONN);
 371         XLineMessage = options->getString("xlinemessage", options->getString("moronbanner", "You're banned!"));
 372         ServerDesc = ConfValue("server")->getString("description", "Configure Me");
 373         Network = ConfValue("server")->getString("network", "Network");
 374         NetBufferSize = ConfValue("performance")->getInt("netbuffersize", 10240, 1024, 65534);
 375         dns_timeout = ConfValue("dns")->getInt("timeout", 5);
 376         DisabledCommands = ConfValue("disabled")->getString("commands", "");
 377         DisabledDontExist = ConfValue("disabled")->getBool("fakenonexistant");
 378         UserStats = security->getString("userstats");
 379         CustomVersion = security->getString("customversion");
 380         HideSplits = security->getBool("hidesplits");
 381         HideBans = security->getBool("hidebans");
 382         HideWhoisServer = security->getString("hidewhois");
 383         HideKillsServer = security->getString("hidekills");
 384         RestrictBannedUsers = security->getBool("restrictbannedusers", true);
 385         GenericOper = security->getBool("genericoper");
 386         SyntaxHints = options->getBool("syntaxhints");
 387         CycleHostsFromUser = options->getBool("cyclehostsfromuser");
 388         UndernetMsgPrefix = options->getBool("ircumsgprefix");
 389         FullHostInTopic = options->getBool("hostintopic");
 390         MaxTargets = security->getInt("maxtargets", 20, 1, 31);
 391         DefaultModes = options->getString("defaultmodes", "not");
 392         PID = ConfValue("pid")->getString("file");
 393         MaxChans = ConfValue("channels")->getInt("users", 20);
 394         OperMaxChans = ConfValue("channels")->getInt("opers");
 395         c_ipv4_range = ConfValue("cidr")->getInt("ipv4clone", 32);
 396         c_ipv6_range = ConfValue("cidr")->getInt("ipv6clone", 128);
 397         Limits.NickMax = ConfValue("limits")->getInt("maxnick", 32);
 398         Limits.ChanMax = ConfValue("limits")->getInt("maxchan", 64);
 399         Limits.MaxModes = ConfValue("limits")->getInt("maxmodes", 20);
 400         Limits.IdentMax = ConfValue("limits")->getInt("maxident", 11);
 401         Limits.MaxHost = ConfValue("limits")->getInt("maxhost", 64);
 402         Limits.MaxQuit = ConfValue("limits")->getInt("maxquit", 255);
 403         Limits.MaxTopic = ConfValue("limits")->getInt("maxtopic", 307);
 404         Limits.MaxKick = ConfValue("limits")->getInt("maxkick", 255);
 405         Limits.MaxGecos = ConfValue("limits")->getInt("maxgecos", 128);
 406         Limits.MaxAway = ConfValue("limits")->getInt("maxaway", 200);
 407         Limits.MaxLine = ConfValue("limits")->getInt("maxline", 512);
 408         Paths.Config = ConfValue("path")->getString("configdir", INSPIRCD_CONFIG_PATH);
 409         Paths.Data = ConfValue("path")->getString("datadir", INSPIRCD_DATA_PATH);
 410         Paths.Log = ConfValue("path")->getString("logdir", INSPIRCD_LOG_PATH);
 411         Paths.Module = ConfValue("path")->getString("moduledir", INSPIRCD_MODULE_PATH);
 412         InvBypassModes = options->getBool("invitebypassmodes", true);
 413         NoSnoticeStack = options->getBool("nosnoticestack", false);
 414
 415         if (Network.find(' ') != std::string::npos)
 416                 throw CoreException(Network + " is not a valid network name. A network name must not contain spaces.");
 417
 418         std::string defbind = options->getString("defaultbind");
 419         if (assign(defbind) == "ipv4")
 420         {
 421                 WildcardIPv6 = false;
 422         }
 423         else if (assign(defbind) == "ipv6")
 424         {
 425                 WildcardIPv6 = true;
 426         }
 427         else
 428         {
 429                 WildcardIPv6 = true;
 430                 int socktest = socket(AF_INET6, SOCK_STREAM, 0);
 431                 if (socktest < 0)
 432                         WildcardIPv6 = false;
 433                 else
 434                         SocketEngine::Close(socktest);
 435         }
 436
 437         ReadXLine(this, "badip", "ipmask", ServerInstance->XLines->GetFactory("Z"));
 438         ReadXLine(this, "badnick", "nick", ServerInstance->XLines->GetFactory("Q"));
 439         ReadXLine(this, "badhost", "host", ServerInstance->XLines->GetFactory("K"));
 440         ReadXLine(this, "exception", "host", ServerInstance->XLines->GetFactory("E"));
 441
 442         memset(DisabledUModes, 0, sizeof(DisabledUModes));
 443         std::string modes = ConfValue("disabled")->getString("usermodes");
 444         for (std::string::const_iterator p = modes.begin(); p != modes.end(); ++p)
 445         {
 446                 // Complain when the character is not a-z or A-Z
 447                 if ((*p < 'A') || (*p > 'z') || ((*p < 'a') && (*p > 'Z')))
 448                         throw CoreException("Invalid usermode " + std::string(1, *p) + " was found.");
 449                 DisabledUModes[*p - 'A'] = 1;
 450         }
 451
 452         memset(DisabledCModes, 0, sizeof(DisabledCModes));
 453         modes = ConfValue("disabled")->getString("chanmodes");
 454         for (std::string::const_iterator p = modes.begin(); p != modes.end(); ++p)
 455         {
 456                 if ((*p < 'A') || (*p > 'z') || ((*p < 'a') && (*p > 'Z')))
 457                         throw CoreException("Invalid chanmode " + std::string(1, *p) + " was found.");
 458                 DisabledCModes[*p - 'A'] = 1;
 459         }
 460
 461         memset(HideModeLists, 0, sizeof(HideModeLists));
 462         modes = ConfValue("security")->getString("hidemodes");
 463         for (std::string::const_iterator p = modes.begin(); p != modes.end(); ++p)
 464                 HideModeLists[(unsigned char) *p] = true;
 465
 466         std::string v = security->getString("announceinvites");
 467
 468         if (v == "ops")
 469                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_OPS;
 470         else if (v == "all")
 471                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_ALL;
 472         else if (v == "dynamic")
 473                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_DYNAMIC;
 474         else
 475                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_NONE;
 476
 477         v = security->getString("operspywhois");
 478         if (v == "splitmsg")
 479                 OperSpyWhois = SPYWHOIS_SPLITMSG;
 480         else if (v == "on" || v == "yes")
 481                 OperSpyWhois = SPYWHOIS_SINGLEMSG;
 482         else
 483                 OperSpyWhois = SPYWHOIS_NONE;
 484 }
 485
 486 // WARNING: it is not safe to use most of the codebase in this function, as it
 487 // will run in the config reader thread
 488 void ServerConfig::Read()
 489 {
 490         /* Load and parse the config file, if there are any errors then explode */
 491
 492         ParseStack stack(this);
 493         try
 494         {
 495                 valid = stack.ParseFile(ServerInstance->ConfigFileName, 0);
 496         }
 497         catch (CoreException& err)
 498         {
 499                 valid = false;
 500                 errstr << err.GetReason() << std::endl;
 501         }
 502 }
 503
 504 void ServerConfig::Apply(ServerConfig* old, const std::string &useruid)
 505 {
 506         valid = true;
 507         if (old)
 508         {
 509                 /*
 510                  * These values can only be set on boot. Keep their old values. Do it before we send messages so we actually have a servername.
 511                  */
 512                 this->ServerName = old->ServerName;
 513                 this->sid = old->sid;
 514                 this->cmdline = old->cmdline;
 515         }
 516
 517         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 518         try
 519         {
 520                 for (int index = 0; index * sizeof(DeprecatedConfig) < sizeof(ChangedConfig); index++)
 521                 {
 522                         std::string value;
 523                         ConfigTagList tags = ConfTags(ChangedConfig[index].tag);
 524                         for(ConfigIter i = tags.first; i != tags.second; ++i)
 525                         {
 526                                 if (i->second->readString(ChangedConfig[index].key, value, true)
 527                                         && (ChangedConfig[index].value.empty() || value == ChangedConfig[index].value))
 528                                 {
 529                                         errstr << "Your configuration contains a deprecated value: <"  << ChangedConfig[index].tag;
 530                                         if (ChangedConfig[index].value.empty())
 531                                         {
 532                                                 errstr << ':' << ChangedConfig[index].key;
 533                                         }
 534                                         else
 535                                         {
 536                                                 errstr << ' ' << ChangedConfig[index].key << "=\"" << ChangedConfig[index].value << "\"";
 537                                         }
 538                                         errstr << "> - " << ChangedConfig[index].reason << " (at " << i->second->getTagLocation() << ")" << std::endl;
 539                                 }
 540                         }
 541                 }
 542
 543                 Fill();
 544
 545                 // Handle special items
 546                 CrossCheckOperClassType();
 547                 CrossCheckConnectBlocks(old);
 548         }
 549         catch (CoreException &ce)
 550         {
 551                 errstr << ce.GetReason();
 552         }
 553
 554         // Check errors before dealing with failed binds, since continuing on failed bind is wanted in some circumstances.
 555         valid = errstr.str().empty();
 556
 557         // write once here, to try it out and make sure its ok
 558         if (valid)
 559                 ServerInstance->WritePID(this->PID);
 560
 561         ConfigTagList binds = ConfTags("bind");
 562         if (binds.first == binds.second)
 563                  errstr << "Possible configuration error: you have not defined any <bind> blocks." << std::endl
 564                          << "You will need to do this if you want clients to be able to connect!" << std::endl;
 565
 566         if (old)
 567         {
 568                 // On first run, ports are bound later on
 569                 FailedPortList pl;
 570                 ServerInstance->BindPorts(pl);
 571                 if (pl.size())
 572                 {
 573                         errstr << "Not all your client ports could be bound." << std::endl
 574                                 << "The following port(s) failed to bind:" << std::endl;
 575
 576                         int j = 1;
 577                         for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 578                         {
 579                                 errstr << j << ".\tAddress: " << (i->first.empty() ? "<all>" : i->first.c_str()) << "\tReason: "
 580                                         << i->second << std::endl;
 581                         }
 582                 }
 583         }
 584
 585         User* user = useruid.empty() ? NULL : ServerInstance->FindNick(useruid);
 586
 587         if (!valid)
 588         {
 589                 ServerInstance->Logs->Log("CONFIG", LOG_DEFAULT, "There were errors in your configuration file:");
 590                 Classes.clear();
 591         }
 592
 593         while (errstr.good())
 594         {
 595                 std::string line;
 596                 getline(errstr, line, '\n');
 597                 if (line.empty())
 598                         continue;
 599                 // On startup, print out to console (still attached at this point)
 600                 if (!old)
 601                         std::cout << line << std::endl;
 602                 // If a user is rehashing, tell them directly
 603                 if (user)
 604                         user->SendText(":%s NOTICE %s :*** %s", ServerInstance->Config->ServerName.c_str(), user->nick.c_str(), line.c_str());
 605                 // Also tell opers
 606                 ServerInstance->SNO->WriteGlobalSno('a', line);
 607         }
 608
 609         errstr.clear();
 610         errstr.str(std::string());
 611
 612         // Re-parse our MOTD and RULES files for colors -- Justasic
 613         for (ClassVector::const_iterator it = this->Classes.begin(), it_end = this->Classes.end(); it != it_end; ++it)
 614         {
 615                 ConfigTag *tag = (*it)->config;
 616                 // Make sure our connection class allows motd colors
 617                 if(!tag->getBool("allowmotdcolors"))
 618                       continue;
 619
 620                 ConfigFileCache::iterator file = this->Files.find(tag->getString("motd", "motd"));
 621                 if (file != this->Files.end())
 622                       InspIRCd::ProcessColors(file->second);
 623         }
 624
 625         /* No old configuration -> initial boot, nothing more to do here */
 626         if (!old)
 627         {
 628                 if (!valid)
 629                 {
 630                         ServerInstance->Exit(EXIT_STATUS_CONFIG);
 631                 }
 632
 633                 return;
 634         }
 635
 636
 637         // If there were errors processing configuration, don't touch modules.
 638         if (!valid)
 639                 return;
 640
 641         ApplyModules(user);
 642
 643         if (user)
 644                 user->SendText(":%s NOTICE %s :*** Successfully rehashed server.",
 645                         ServerInstance->Config->ServerName.c_str(), user->nick.c_str());
 646         ServerInstance->SNO->WriteGlobalSno('a', "*** Successfully rehashed server.");
 647 }
 648
 649 void ServerConfig::ApplyModules(User* user)
 650 {
 651         std::vector<std::string> added_modules;
 652         ModuleManager::ModuleMap removed_modules = ServerInstance->Modules->GetModules();
 653
 654         ConfigTagList tags = ConfTags("module");
 655         for(ConfigIter i = tags.first; i != tags.second; ++i)
 656         {
 657                 ConfigTag* tag = i->second;
 658                 std::string name;
 659                 if (tag->readString("name", name))
 660                 {
 661                         // if this module is already loaded, the erase will succeed, so we need do nothing
 662                         // otherwise, we need to add the module (which will be done later)
 663                         if (removed_modules.erase(name) == 0)
 664                                 added_modules.push_back(name);
 665                 }
 666         }
 667
 668         for (ModuleManager::ModuleMap::iterator i = removed_modules.begin(); i != removed_modules.end(); ++i)
 669         {
 670                 const std::string& modname = i->first;
 671                 // Don't remove core_*.so, just remove m_*.so
 672                 if (modname.c_str()[0] == 'c')
 673                         continue;
 674                 if (ServerInstance->Modules->Unload(i->second))
 675                 {
 676                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH UNLOADED MODULE: %s", modname.c_str());
 677
 678                         if (user)
 679                                 user->WriteNumeric(RPL_UNLOADEDMODULE, "%s :Module %s successfully unloaded.", modname.c_str(), modname.c_str());
 680                         else
 681                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully unloaded.", modname.c_str());
 682                 }
 683                 else
 684                 {
 685                         if (user)
 686                                 user->WriteNumeric(ERR_CANTUNLOADMODULE, "%s :Failed to unload module %s: %s", modname.c_str(), modname.c_str(), ServerInstance->Modules->LastError().c_str());
 687                         else
 688                                  ServerInstance->SNO->WriteGlobalSno('a', "Failed to unload module %s: %s", modname.c_str(), ServerInstance->Modules->LastError().c_str());
 689                 }
 690         }
 691
 692         for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 693         {
 694                 if (ServerInstance->Modules->Load(adding->c_str()))
 695                 {
 696                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH LOADED MODULE: %s",adding->c_str());
 697                         if (user)
 698                                 user->WriteNumeric(RPL_LOADEDMODULE, "%s :Module %s successfully loaded.", adding->c_str(), adding->c_str());
 699                         else
 700                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully loaded.", adding->c_str());
 701                 }
 702                 else
 703                 {
 704                         if (user)
 705                                 user->WriteNumeric(ERR_CANTLOADMODULE, "%s :Failed to load module %s: %s", adding->c_str(), adding->c_str(), ServerInstance->Modules->LastError().c_str());
 706                         else
 707                                 ServerInstance->SNO->WriteGlobalSno('a', "Failed to load module %s: %s", adding->c_str(), ServerInstance->Modules->LastError().c_str());
 708                 }
 709         }
 710 }
 711
 712 ConfigTag* ServerConfig::ConfValue(const std::string &tag)
 713 {
 714         ConfigTagList found = config_data.equal_range(tag);
 715         if (found.first == found.second)
 716                 return NULL;
 717         ConfigTag* rv = found.first->second;
 718         found.first++;
 719         if (found.first != found.second)
 720                 ServerInstance->Logs->Log("CONFIG", LOG_DEFAULT, "Multiple <" + tag + "> tags found; only first will be used "
 721                         "(first at " + rv->getTagLocation() + "; second at " + found.first->second->getTagLocation() + ")");
 722         return rv;
 723 }
 724
 725 ConfigTagList ServerConfig::ConfTags(const std::string& tag)
 726 {
 727         return config_data.equal_range(tag);
 728 }
 729
 730 std::string ServerConfig::Escape(const std::string& str, bool xml)
 731 {
 732         std::string escaped;
 733         for (std::string::const_iterator it = str.begin(); it != str.end(); ++it)
 734         {
 735                 switch (*it)
 736                 {
 737                         case '"':
 738                                 escaped += xml ? "&quot;" : "\"";
 739                                 break;
 740                         case '&':
 741                                 escaped += xml ? "&amp;" : "&";
 742                                 break;
 743                         case '\\':
 744                                 escaped += xml ? "\\" : "\\\\";
 745                                 break;
 746                         default:
 747                                 escaped += *it;
 748                                 break;
 749                 }
 750         }
 751         return escaped;
 752 }
 753
 754 void ConfigReaderThread::Run()
 755 {
 756         Config->Read();
 757         done = true;
 758 }
 759
 760 void ConfigReaderThread::Finish()
 761 {
 762         ServerConfig* old = ServerInstance->Config;
 763         ServerInstance->Logs->Log("CONFIG", LOG_DEBUG, "Switching to new configuration...");
 764         ServerInstance->Config = this->Config;
 765         Config->Apply(old, TheUserUID);
 766
 767         if (Config->valid)
 768         {
 769                 /*
 770                  * Apply the changed configuration from the rehash.
 771                  *
 772                  * XXX: The order of these is IMPORTANT, do not reorder them without testing
 773                  * thoroughly!!!
 774                  */
 775                 ServerInstance->XLines->CheckELines();
 776                 ServerInstance->XLines->ApplyLines();
 777                 ChanModeReference ban(NULL, "ban");
 778                 static_cast<ListModeBase*>(*ban)->DoRehash();
 779                 Config->ApplyDisabledCommands(Config->DisabledCommands);
 780                 User* user = ServerInstance->FindNick(TheUserUID);
 781
 782                 ConfigStatus status(user);
 783                 const ModuleManager::ModuleMap& mods = ServerInstance->Modules->GetModules();
 784                 for (ModuleManager::ModuleMap::const_iterator i = mods.begin(); i != mods.end(); ++i)
 785                         i->second->ReadConfig(status);
 786
 787                 ServerInstance->ISupport.Build();
 788
 789                 ServerInstance->Logs->CloseLogs();
 790                 ServerInstance->Logs->OpenFileLogs();
 791
 792                 if (Config->RawLog && !old->RawLog)
 793                         ServerInstance->Users->ServerNoticeAll("*** Raw I/O logging is enabled on this server. All messages, passwords, and commands are being recorded.");
 794
 795                 Config = old;
 796         }
 797         else
 798         {
 799                 // whoops, abort!
 800                 ServerInstance->Config = old;
 801         }
 802 }