src/configreader.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
   6  * See: http://wiki.inspircd.org/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *          the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 /* $Core */
  15 /* $CopyInstall: conf/inspircd.quotes.example $(CONPATH) */
  16 /* $CopyInstall: conf/inspircd.rules.example $(CONPATH) */
  17 /* $CopyInstall: conf/inspircd.motd.example $(CONPATH) */
  18 /* $CopyInstall: conf/inspircd.helpop-full.example $(CONPATH) */
  19 /* $CopyInstall: conf/inspircd.helpop.example $(CONPATH) */
  20 /* $CopyInstall: conf/inspircd.censor.example $(CONPATH) */
  21 /* $CopyInstall: conf/inspircd.filter.example $(CONPATH) */
  22 /* $CopyInstall: conf/inspircd.conf.example $(CONPATH) */
  23 /* $CopyInstall: conf/modules.conf.example $(CONPATH) */
  24 /* $CopyInstall: conf/opers.conf.example $(CONPATH) */
  25 /* $CopyInstall: conf/links.conf.example $(CONPATH) */
  26 /* $CopyInstall: tools/gdbargs $(BASE)/.gdbargs */
  27
  28 #include "inspircd.h"
  29 #include <fstream>
  30 #include "xline.h"
  31 #include "exitcodes.h"
  32 #include "commands/cmd_whowas.h"
  33 #include "configparser.h"
  34
  35 ServerConfig::ServerConfig()
  36 {
  37         WhoWasGroupSize = WhoWasMaxGroups = WhoWasMaxKeep = 0;
  38         NoUserDns = OperSpyWhois = HideBans = HideSplits = UndernetMsgPrefix = false;
  39         CycleHosts = InvBypassModes = true;
  40         dns_timeout = 5;
  41         MaxTargets = 20;
  42         NetBufferSize = 10240;
  43         SoftLimit = ServerInstance->SE->GetMaxFds();
  44         MaxConn = SOMAXCONN;
  45         MaxWhoResults = 0;
  46         MaxChans = 20;
  47         OperMaxChans = 30;
  48         c_ipv4_range = 32;
  49         c_ipv6_range = 128;
  50 }
  51
  52 void ServerConfig::Update005()
  53 {
  54         std::stringstream out(data005);
  55         std::string token;
  56         std::string line5;
  57         int token_counter = 0;
  58         isupport.clear();
  59         while (out >> token)
  60         {
  61                 line5 = line5 + token + " ";
  62                 token_counter++;
  63                 if (token_counter >= 13)
  64                 {
  65                         char buf[MAXBUF];
  66                         snprintf(buf, MAXBUF, "%s:are supported by this server", line5.c_str());
  67                         isupport.push_back(buf);
  68                         line5.clear();
  69                         token_counter = 0;
  70                 }
  71         }
  72         if (!line5.empty())
  73         {
  74                 char buf[MAXBUF];
  75                 snprintf(buf, MAXBUF, "%s:are supported by this server", line5.c_str());
  76                 isupport.push_back(buf);
  77         }
  78 }
  79
  80 void ServerConfig::Send005(User* user)
  81 {
  82         for (std::vector<std::string>::iterator line = ServerInstance->Config->isupport.begin(); line != ServerInstance->Config->isupport.end(); line++)
  83                 user->WriteNumeric(RPL_ISUPPORT, "%s %s", user->nick.c_str(), line->c_str());
  84 }
  85
  86 template<typename T, typename V>
  87 static void range(T& value, V min, V max, V def, const char* msg)
  88 {
  89         if (value >= (T)min && value <= (T)max)
  90                 return;
  91         ServerInstance->Logs->Log("CONFIG", DEFAULT,
  92                 "WARNING: %s value of %ld is not between %ld and %ld; set to %ld.",
  93                 msg, (long)value, (long)min, (long)max, (long)def);
  94         value = def;
  95 }
  96
  97
  98 static void ValidIP(const std::string& ip, const std::string& key)
  99 {
 100         irc::sockets::sockaddrs dummy;
 101         if (!irc::sockets::aptosa(ip, 0, dummy))
 102                 throw CoreException("The value of "+key+" is not an IP address");
 103 }
 104
 105 static void ValidHost(const std::string& p, const std::string& msg)
 106 {
 107         int num_dots = 0;
 108         if (p.empty() || p[0] == '.')
 109                 throw CoreException("The value of "+msg+" is not a valid hostname");
 110         for (unsigned int i=0;i < p.length();i++)
 111         {
 112                 switch (p[i])
 113                 {
 114                         case ' ':
 115                                 throw CoreException("The value of "+msg+" is not a valid hostname");
 116                         case '.':
 117                                 num_dots++;
 118                         break;
 119                 }
 120         }
 121         if (num_dots == 0)
 122                 throw CoreException("The value of "+msg+" is not a valid hostname");
 123 }
 124
 125 bool ServerConfig::ApplyDisabledCommands(const std::string& data)
 126 {
 127         std::stringstream dcmds(data);
 128         std::string thiscmd;
 129
 130         /* Enable everything first */
 131         for (Commandtable::iterator x = ServerInstance->Parser->cmdlist.begin(); x != ServerInstance->Parser->cmdlist.end(); x++)
 132                 x->second->Disable(false);
 133
 134         /* Now disable all the ones which the user wants disabled */
 135         while (dcmds >> thiscmd)
 136         {
 137                 Commandtable::iterator cm = ServerInstance->Parser->cmdlist.find(thiscmd);
 138                 if (cm != ServerInstance->Parser->cmdlist.end())
 139                 {
 140                         cm->second->Disable(true);
 141                 }
 142         }
 143         return true;
 144 }
 145
 146 #ifdef WINDOWS
 147 // Note: the windows validator is in win32wrapper.cpp
 148 void FindDNS(std::string& server);
 149 #else
 150 static void FindDNS(std::string& server)
 151 {
 152         if (!server.empty())
 153                 return;
 154
 155         // attempt to look up their nameserver from /etc/resolv.conf
 156         ServerInstance->Logs->Log("CONFIG",DEFAULT,"WARNING: <dns:server> not defined, attempting to find working server in /etc/resolv.conf...");
 157
 158         std::ifstream resolv("/etc/resolv.conf");
 159
 160         while (resolv >> server)
 161         {
 162                 if (server == "nameserver")
 163                 {
 164                         resolv >> server;
 165                         ServerInstance->Logs->Log("CONFIG",DEFAULT,"<dns:server> set to '%s' as first resolver in /etc/resolv.conf.",server.c_str());
 166                         return;
 167                 }
 168         }
 169
 170         ServerInstance->Logs->Log("CONFIG",DEFAULT,"/etc/resolv.conf contains no viable nameserver entries! Defaulting to nameserver '127.0.0.1'!");
 171         server = "127.0.0.1";
 172 }
 173 #endif
 174
 175 static void ReadXLine(ServerConfig* conf, const std::string& tag, const std::string& key, XLineFactory* make)
 176 {
 177         ConfigTagList tags = conf->ConfTags(tag);
 178         for(ConfigIter i = tags.first; i != tags.second; ++i)
 179         {
 180                 ConfigTag* ctag = i->second;
 181                 std::string mask;
 182                 if (!ctag->readString(key, mask))
 183                         throw CoreException("<"+tag+":"+key+"> missing at " + ctag->getTagLocation());
 184                 std::string reason = ctag->getString("reason", "<Config>");
 185                 XLine* xl = make->Generate(ServerInstance->Time(), 0, "<Config>", reason, mask);
 186                 if (!ServerInstance->XLines->AddLine(xl, NULL))
 187                         delete xl;
 188         }
 189 }
 190
 191 typedef std::map<std::string, ConfigTag*> LocalIndex;
 192 void ServerConfig::CrossCheckOperClassType()
 193 {
 194         LocalIndex operclass;
 195         ConfigTagList tags = ConfTags("class");
 196         for(ConfigIter i = tags.first; i != tags.second; ++i)
 197         {
 198                 ConfigTag* tag = i->second;
 199                 std::string name = tag->getString("name");
 200                 if (name.empty())
 201                         throw CoreException("<class:name> missing from tag at " + tag->getTagLocation());
 202                 operclass[name] = tag;
 203         }
 204         tags = ConfTags("type");
 205         for(ConfigIter i = tags.first; i != tags.second; ++i)
 206         {
 207                 ConfigTag* tag = i->second;
 208                 std::string name = tag->getString("name");
 209                 if (name.empty())
 210                         throw CoreException("<type:name> is missing from tag at " + tag->getTagLocation());
 211
 212                 if (!ServerInstance->IsNick(name.c_str(), Limits.NickMax))
 213                         throw CoreException("<type:name> is invalid (value '" + name + "')");
 214
 215                 OperInfo* ifo = new OperInfo;
 216                 oper_blocks[" " + name] = ifo;
 217                 ifo->type_block = tag;
 218
 219                 std::string classname;
 220                 irc::spacesepstream str(tag->getString("classes"));
 221                 while (str.GetToken(classname))
 222                 {
 223                         LocalIndex::iterator cls = operclass.find(classname);
 224                         if (cls == operclass.end())
 225                                 throw CoreException("Oper type " + name + " has missing class " + classname);
 226                         ifo->class_blocks.push_back(cls->second);
 227                 }
 228         }
 229
 230         tags = ConfTags("oper");
 231         for(ConfigIter i = tags.first; i != tags.second; ++i)
 232         {
 233                 ConfigTag* tag = i->second;
 234
 235                 std::string name = tag->getString("name");
 236                 if (name.empty())
 237                         throw CoreException("<oper:name> missing from tag at " + tag->getTagLocation());
 238
 239                 std::string type = tag->getString("type");
 240                 OperIndex::iterator tblk = oper_blocks.find(" " + type);
 241                 if (tblk == oper_blocks.end())
 242                         throw CoreException("Oper block " + name + " has missing type " + type);
 243                 if (oper_blocks.find(name) != oper_blocks.end())
 244                         throw CoreException("Duplicate oper block with name " + name);
 245
 246                 OperInfo* ifo = new OperInfo;
 247                 ifo->name = type;
 248                 ifo->oper_block = tag;
 249                 ifo->type_block = tblk->second->type_block;
 250                 ifo->class_blocks.assign(tblk->second->class_blocks.begin(), tblk->second->class_blocks.end());
 251                 oper_blocks[name] = ifo;
 252         }
 253 }
 254
 255 void ServerConfig::CrossCheckConnectBlocks(ServerConfig* current)
 256 {
 257         typedef std::map<std::string, ConnectClass*> ClassMap;
 258         ClassMap oldBlocksByMask;
 259         if (current)
 260         {
 261                 for(ClassVector::iterator i = current->Classes.begin(); i != current->Classes.end(); ++i)
 262                 {
 263                         ConnectClass* c = *i;
 264                         std::string typeMask = (c->type == CC_ALLOW) ? "a" : "d";
 265                         typeMask += c->host;
 266                         oldBlocksByMask[typeMask] = c;
 267                 }
 268         }
 269
 270         int blk_count = config_data.count("connect");
 271         if (blk_count == 0)
 272         {
 273                 // No connect blocks found; make a trivial default block
 274                 std::vector<KeyVal>* items;
 275                 ConfigTag* tag = ConfigTag::create("connect", "<auto>", 0, items);
 276                 items->push_back(std::make_pair("allow", "*"));
 277                 config_data.insert(std::make_pair("connect", tag));
 278                 blk_count = 1;
 279         }
 280
 281         ClassMap newBlocksByMask;
 282         Classes.resize(blk_count);
 283         std::map<std::string, int> names;
 284
 285         bool try_again = true;
 286         for(int tries=0; try_again; tries++)
 287         {
 288                 try_again = false;
 289                 ConfigTagList tags = ConfTags("connect");
 290                 int i=0;
 291                 for(ConfigIter it = tags.first; it != tags.second; ++it, ++i)
 292                 {
 293                         ConfigTag* tag = it->second;
 294                         if (Classes[i])
 295                                 continue;
 296
 297                         ConnectClass* parent = NULL;
 298                         std::string parentName = tag->getString("parent");
 299                         if (!parentName.empty())
 300                         {
 301                                 std::map<std::string,int>::iterator parentIter = names.find(parentName);
 302                                 if (parentIter == names.end())
 303                                 {
 304                                         try_again = true;
 305                                         // couldn't find parent this time. If it's the last time, we'll never find it.
 306                                         if (tries >= blk_count)
 307                                                 throw CoreException("Could not find parent connect class \"" + parentName + "\" for connect block " + ConvToStr(i));
 308                                         continue;
 309                                 }
 310                                 parent = Classes[parentIter->second];
 311                         }
 312
 313                         std::string name = tag->getString("name");
 314                         if (name.empty())
 315                         {
 316                                 name = "unnamed-" + ConvToStr(i);
 317                         }
 318
 319                         if (names.find(name) != names.end())
 320                                 throw CoreException("Two connect classes with name \"" + name + "\" defined!");
 321                         names[name] = i;
 322
 323                         std::string mask, typeMask;
 324                         char type;
 325
 326                         if (tag->readString("allow", mask, false))
 327                         {
 328                                 type = CC_ALLOW;
 329                                 typeMask = 'a' + mask;
 330                         }
 331                         else if (tag->readString("deny", mask, false))
 332                         {
 333                                 type = CC_DENY;
 334                                 typeMask = 'd' + mask;
 335                         }
 336                         else
 337                         {
 338                                 throw CoreException("Connect class must have an allow or deny mask at " + tag->getTagLocation());
 339                         }
 340                         ClassMap::iterator dupMask = newBlocksByMask.find(typeMask);
 341                         if (dupMask != newBlocksByMask.end())
 342                                 throw CoreException("Two connect classes cannot have the same mask (" + mask + ")");
 343
 344                         ConnectClass* me = parent ?
 345                                 new ConnectClass(tag, type, mask, *parent) :
 346                                 new ConnectClass(tag, type, mask);
 347
 348                         me->name = name;
 349
 350                         tag->readString("password", me->pass);
 351                         tag->readString("hash", me->hash);
 352                         me->registration_timeout = tag->getInt("timeout", me->registration_timeout);
 353                         me->pingtime = tag->getInt("pingfreq", me->pingtime);
 354                         std::string sendq;
 355                         if (tag->readString("sendq", sendq))
 356                         {
 357                                 // attempt to guess a good hard/soft sendq from a single value
 358                                 long value = atol(sendq.c_str());
 359                                 if (value > 16384)
 360                                         me->softsendqmax = value / 16;
 361                                 else
 362                                         me->softsendqmax = value;
 363                                 me->hardsendqmax = value * 8;
 364                         }
 365                         me->softsendqmax = tag->getInt("softsendq", me->softsendqmax);
 366                         me->hardsendqmax = tag->getInt("hardsendq", me->hardsendqmax);
 367                         me->recvqmax = tag->getInt("recvq", me->recvqmax);
 368                         me->penaltythreshold = tag->getInt("threshold", me->penaltythreshold);
 369                         me->maxlocal = tag->getInt("localmax", me->maxlocal);
 370                         me->maxglobal = tag->getInt("globalmax", me->maxglobal);
 371                         me->port = tag->getInt("port", me->port);
 372                         me->maxchans = tag->getInt("maxchans", me->maxchans);
 373                         me->limit = tag->getInt("limit", me->limit);
 374
 375                         ClassMap::iterator oldMask = oldBlocksByMask.find(typeMask);
 376                         if (oldMask != oldBlocksByMask.end())
 377                         {
 378                                 ConnectClass* old = oldMask->second;
 379                                 oldBlocksByMask.erase(oldMask);
 380                                 old->Update(me);
 381                                 delete me;
 382                                 me = old;
 383                         }
 384                         newBlocksByMask[typeMask] = me;
 385                         Classes[i] = me;
 386                 }
 387         }
 388 }
 389
 390 /** Represents a deprecated configuration tag.
 391  */
 392 struct Deprecated
 393 {
 394         /** Tag name
 395          */
 396         const char* tag;
 397         /** Tag value
 398          */
 399         const char* value;
 400         /** Reason for deprecation
 401          */
 402         const char* reason;
 403 };
 404
 405 static const Deprecated ChangedConfig[] = {
 406         {"options", "hidelinks",                "has been moved to <security:hidelinks> as of 1.2a3"},
 407         {"options", "hidewhois",                "has been moved to <security:hidewhois> as of 1.2a3"},
 408         {"options", "userstats",                "has been moved to <security:userstats> as of 1.2a3"},
 409         {"options", "customversion",    "has been moved to <security:customversion> as of 1.2a3"},
 410         {"options", "hidesplits",               "has been moved to <security:hidesplits> as of 1.2a3"},
 411         {"options", "hidebans",         "has been moved to <security:hidebans> as of 1.2a3"},
 412         {"options", "hidekills",                "has been moved to <security:hidekills> as of 1.2a3"},
 413         {"options", "operspywhois",             "has been moved to <security:operspywhois> as of 1.2a3"},
 414         {"options", "announceinvites",  "has been moved to <security:announceinvites> as of 1.2a3"},
 415         {"options", "hidemodes",                "has been moved to <security:hidemodes> as of 1.2a3"},
 416         {"options", "maxtargets",               "has been moved to <security:maxtargets> as of 1.2a3"},
 417         {"options",     "nouserdns",            "has been moved to <performance:nouserdns> as of 1.2a3"},
 418         {"options",     "maxwho",               "has been moved to <performance:maxwho> as of 1.2a3"},
 419         {"options",     "softlimit",            "has been moved to <performance:softlimit> as of 1.2a3"},
 420         {"options", "somaxconn",                "has been moved to <performance:somaxconn> as of 1.2a3"},
 421         {"options", "netbuffersize",    "has been moved to <performance:netbuffersize> as of 1.2a3"},
 422         {"options", "maxwho",           "has been moved to <performance:maxwho> as of 1.2a3"},
 423         {"options",     "loglevel",             "1.2 does not use the loglevel value. Please define <log> tags instead."},
 424         {"die",     "value",            "you need to reread your config"},
 425 };
 426
 427 void ServerConfig::Fill()
 428 {
 429         ConfigTag* options = ConfValue("options");
 430         ConfigTag* security = ConfValue("security");
 431         diepass = ConfValue("power")->getString("diepass");
 432         restartpass = ConfValue("power")->getString("restartpass");
 433         powerhash = ConfValue("power")->getString("hash");
 434         PrefixQuit = options->getString("prefixquit");
 435         SuffixQuit = options->getString("suffixquit");
 436         FixedQuit = options->getString("fixedquit");
 437         PrefixPart = options->getString("prefixpart");
 438         SuffixPart = options->getString("suffixpart");
 439         FixedPart = options->getString("fixedpart");
 440         SoftLimit = ConfValue("performance")->getInt("softlimit", ServerInstance->SE->GetMaxFds());
 441         MaxConn = ConfValue("performance")->getInt("somaxconn", SOMAXCONN);
 442         MoronBanner = options->getString("moronbanner", "You're banned!");
 443         ServerName = ConfValue("server")->getString("name");
 444         ServerDesc = ConfValue("server")->getString("description", "Configure Me");
 445         Network = ConfValue("server")->getString("network", "Network");
 446         sid = ConfValue("server")->getString("id", "");
 447         AdminName = ConfValue("admin")->getString("name", "");
 448         AdminEmail = ConfValue("admin")->getString("email", "null@example.com");
 449         AdminNick = ConfValue("admin")->getString("nick", "admin");
 450         ModPath = ConfValue("path")->getString("moduledir", MOD_PATH);
 451         NetBufferSize = ConfValue("performance")->getInt("netbuffersize", 10240);
 452         MaxWhoResults = ConfValue("performance")->getInt("maxwho", 1024);
 453         dns_timeout = ConfValue("dns")->getInt("timeout", 5);
 454         DisabledCommands = ConfValue("disabled")->getString("commands", "");
 455         DisabledDontExist = ConfValue("disabled")->getBool("fakenonexistant");
 456         UserStats = security->getString("userstats");
 457         CustomVersion = security->getString("customversion");
 458         HideSplits = security->getBool("hidesplits");
 459         HideBans = security->getBool("hidebans");
 460         HideWhoisServer = security->getString("hidewhois");
 461         HideKillsServer = security->getString("hidekills");
 462         OperSpyWhois = security->getBool("operspywhois");
 463         RestrictBannedUsers = security->getBool("restrictbannedusers", true);
 464         GenericOper = security->getBool("genericoper");
 465         NoUserDns = ConfValue("performance")->getBool("nouserdns");
 466         SyntaxHints = options->getBool("syntaxhints");
 467         CycleHosts = options->getBool("cyclehosts");
 468         UndernetMsgPrefix = options->getBool("ircumsgprefix");
 469         FullHostInTopic = options->getBool("hostintopic");
 470         MaxTargets = security->getInt("maxtargets", 20);
 471         DefaultModes = options->getString("defaultmodes", "nt");
 472         PID = ConfValue("pid")->getString("file");
 473         WhoWasGroupSize = ConfValue("whowas")->getInt("groupsize");
 474         WhoWasMaxGroups = ConfValue("whowas")->getInt("maxgroups");
 475         WhoWasMaxKeep = ServerInstance->Duration(ConfValue("whowas")->getString("maxkeep"));
 476         DieValue = ConfValue("die")->getString("value");
 477         MaxChans = ConfValue("channels")->getInt("users", 20);
 478         OperMaxChans = ConfValue("channels")->getInt("opers", 60);
 479         c_ipv4_range = ConfValue("cidr")->getInt("ipv4clone", 32);
 480         c_ipv6_range = ConfValue("cidr")->getInt("ipv6clone", 128);
 481         Limits.NickMax = ConfValue("limits")->getInt("maxnick", 32);
 482         Limits.ChanMax = ConfValue("limits")->getInt("maxchan", 64);
 483         Limits.MaxModes = ConfValue("limits")->getInt("maxmodes", 20);
 484         Limits.IdentMax = ConfValue("limits")->getInt("maxident", 11);
 485         Limits.MaxQuit = ConfValue("limits")->getInt("maxquit", 255);
 486         Limits.MaxTopic = ConfValue("limits")->getInt("maxtopic", 307);
 487         Limits.MaxKick = ConfValue("limits")->getInt("maxkick", 255);
 488         Limits.MaxGecos = ConfValue("limits")->getInt("maxgecos", 128);
 489         Limits.MaxAway = ConfValue("limits")->getInt("maxaway", 200);
 490         InvBypassModes = options->getBool("invitebypassmodes", true);
 491
 492         range(SoftLimit, 10, ServerInstance->SE->GetMaxFds(), ServerInstance->SE->GetMaxFds(), "<performance:softlimit>");
 493         range(MaxConn, 0, SOMAXCONN, SOMAXCONN, "<performance:somaxconn>");
 494         range(MaxTargets, 1, 31, 20, "<security:maxtargets>");
 495         range(NetBufferSize, 1024, 65534, 10240, "<performance:netbuffersize>");
 496         range(MaxWhoResults, 1, 65535, 1024, "<performace:maxwho>");
 497         range(WhoWasGroupSize, 0, 10000, 10, "<whowas:groupsize>");
 498         range(WhoWasMaxGroups, 0, 1000000, 10240, "<whowas:maxgroups>");
 499         range(WhoWasMaxKeep, 3600, INT_MAX, 3600, "<whowas:maxkeep>");
 500
 501         ValidIP(DNSServer, "<dns:server>");
 502         ValidHost(ServerName, "<server:name>");
 503         if (!sid.empty() && !ServerInstance->IsSID(sid))
 504                 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.");
 505
 506         ConfigTagList tags = ConfTags("uline");
 507         for(ConfigIter i = tags.first; i != tags.second; ++i)
 508         {
 509                 ConfigTag* tag = i->second;
 510                 std::string server;
 511                 if (!tag->readString("server", server))
 512                         throw CoreException("<uline> tag missing server at " + tag->getTagLocation());
 513                 ulines[assign(server)] = tag->getBool("silent");
 514         }
 515
 516         tags = ConfTags("banlist");
 517         for(ConfigIter i = tags.first; i != tags.second; ++i)
 518         {
 519                 ConfigTag* tag = i->second;
 520                 std::string chan;
 521                 if (!tag->readString("chan", chan))
 522                         throw CoreException("<banlist> tag missing chan at " + tag->getTagLocation());
 523                 maxbans[chan] = tag->getInt("limit");
 524         }
 525
 526         ReadXLine(this, "badip", "ipmask", ServerInstance->XLines->GetFactory("Z"));
 527         ReadXLine(this, "badnick", "nick", ServerInstance->XLines->GetFactory("Q"));
 528         ReadXLine(this, "badhost", "host", ServerInstance->XLines->GetFactory("K"));
 529         ReadXLine(this, "exception", "host", ServerInstance->XLines->GetFactory("E"));
 530
 531         memset(DisabledUModes, 0, sizeof(DisabledUModes));
 532         for (const unsigned char* p = (const unsigned char*)ConfValue("disabled")->getString("usermodes").c_str(); *p; ++p)
 533         {
 534                 if (*p < 'A' || *p > ('A' + 64)) throw CoreException(std::string("Invalid usermode ")+(char)*p+" was found.");
 535                 DisabledUModes[*p - 'A'] = 1;
 536         }
 537
 538         memset(DisabledCModes, 0, sizeof(DisabledCModes));
 539         for (const unsigned char* p = (const unsigned char*)ConfValue("disabled")->getString("chanmodes").c_str(); *p; ++p)
 540         {
 541                 if (*p < 'A' || *p > ('A' + 64)) throw CoreException(std::string("Invalid chanmode ")+(char)*p+" was found.");
 542                 DisabledCModes[*p - 'A'] = 1;
 543         }
 544
 545         memset(HideModeLists, 0, sizeof(HideModeLists));
 546         for (const unsigned char* p = (const unsigned char*)ConfValue("security")->getString("hidemodes").c_str(); *p; ++p)
 547                 HideModeLists[*p] = true;
 548
 549         std::string v = security->getString("announceinvites");
 550
 551         if (v == "ops")
 552                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_OPS;
 553         else if (v == "all")
 554                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_ALL;
 555         else if (v == "dynamic")
 556                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_DYNAMIC;
 557         else
 558                 AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_NONE;
 559
 560         Limits.Finalise();
 561 }
 562
 563 // WARNING: it is not safe to use most of the codebase in this function, as it
 564 // will run in the config reader thread
 565 void ServerConfig::Read()
 566 {
 567         /* Load and parse the config file, if there are any errors then explode */
 568
 569         ParseStack stack(this);
 570         try
 571         {
 572                 valid = stack.ParseFile(ServerInstance->ConfigFileName, 0);
 573         }
 574         catch (CoreException& err)
 575         {
 576                 valid = false;
 577                 errstr << err.GetReason();
 578         }
 579         if (valid)
 580         {
 581                 ReadFile(MOTD, ConfValue("files")->getString("motd"));
 582                 ReadFile(RULES, ConfValue("files")->getString("rules"));
 583                 DNSServer = ConfValue("dns")->getString("server");
 584                 FindDNS(DNSServer);
 585         }
 586 }
 587
 588 void ServerConfig::Apply(ServerConfig* old, const std::string &useruid)
 589 {
 590         valid = true;
 591
 592         /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */
 593         try
 594         {
 595                 for (int Index = 0; Index * sizeof(Deprecated) < sizeof(ChangedConfig); Index++)
 596                 {
 597                         std::string dummy;
 598                         if (ConfValue(ChangedConfig[Index].tag)->readString(ChangedConfig[Index].value, dummy, true))
 599                                 errstr << "Your configuration contains a deprecated value: <"
 600                                         << ChangedConfig[Index].tag << ":" << ChangedConfig[Index].value << "> - " << ChangedConfig[Index].reason
 601                                         << " (at " << ConfValue(ChangedConfig[Index].tag)->getTagLocation() << ")\n";
 602                 }
 603
 604                 Fill();
 605
 606                 // Handle special items
 607                 CrossCheckOperClassType();
 608                 CrossCheckConnectBlocks(old);
 609         }
 610         catch (CoreException &ce)
 611         {
 612                 errstr << ce.GetReason();
 613         }
 614
 615         // write once here, to try it out and make sure its ok
 616         ServerInstance->WritePID(this->PID);
 617
 618         /*
 619          * These values can only be set on boot. Keep their old values. Do it before we send messages so we actually have a servername.
 620          */
 621         if (old)
 622         {
 623                 this->ServerName = old->ServerName;
 624                 this->sid = old->sid;
 625                 this->cmdline = old->cmdline;
 626
 627                 // Same for ports... they're bound later on first run.
 628                 FailedPortList pl;
 629                 ServerInstance->BindPorts(pl);
 630                 if (pl.size())
 631                 {
 632                         errstr << "Not all your client ports could be bound.\nThe following port(s) failed to bind:\n";
 633
 634                         int j = 1;
 635                         for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++)
 636                         {
 637                                 char buf[MAXBUF];
 638                                 snprintf(buf, MAXBUF, "%d.   Address: %s   Reason: %s\n", j, i->first.empty() ? "<all>" : i->first.c_str(), i->second.c_str());
 639                                 errstr << buf;
 640                         }
 641                 }
 642         }
 643
 644         User* user = useruid.empty() ? NULL : ServerInstance->FindNick(useruid);
 645
 646         valid = errstr.str().empty();
 647         if (!valid)
 648                 ServerInstance->Logs->Log("CONFIG",DEFAULT, "There were errors in your configuration file:");
 649
 650         while (errstr.good())
 651         {
 652                 std::string line;
 653                 getline(errstr, line, '\n');
 654                 if (!line.empty())
 655                 {
 656                         if (user)
 657                                 user->WriteServ("NOTICE %s :*** %s", user->nick.c_str(), line.c_str());
 658                         else
 659                                 ServerInstance->SNO->WriteGlobalSno('a', line);
 660                 }
 661
 662                 if (!old)
 663                 {
 664                         // Starting up, so print it out so it's seen. XXX this is a bit of a hack.
 665                         printf("%s\n", line.c_str());
 666                 }
 667         }
 668
 669         errstr.clear();
 670         errstr.str(std::string());
 671
 672         /* No old configuration -> initial boot, nothing more to do here */
 673         if (!old)
 674         {
 675                 if (!valid)
 676                 {
 677                         ServerInstance->Exit(EXIT_STATUS_CONFIG);
 678                 }
 679
 680                 return;
 681         }
 682
 683         // If there were errors processing configuration, don't touch modules.
 684         if (!valid)
 685                 return;
 686
 687         ApplyModules(user);
 688
 689         if (user)
 690                 user->WriteServ("NOTICE %s :*** Successfully rehashed server.", user->nick.c_str());
 691         ServerInstance->SNO->WriteGlobalSno('a', "*** Successfully rehashed server.");
 692 }
 693
 694 void ServerConfig::ApplyModules(User* user)
 695 {
 696         Module* whowas = ServerInstance->Modules->Find("cmd_whowas.so");
 697         if (whowas)
 698                 WhowasRequest(NULL, whowas, WhowasRequest::WHOWAS_PRUNE).Send();
 699
 700         const std::vector<std::string> v = ServerInstance->Modules->GetAllModuleNames(0);
 701         std::vector<std::string> added_modules;
 702         std::set<std::string> removed_modules(v.begin(), v.end());
 703
 704         ConfigTagList tags = ConfTags("module");
 705         for(ConfigIter i = tags.first; i != tags.second; ++i)
 706         {
 707                 ConfigTag* tag = i->second;
 708                 std::string name;
 709                 if (tag->readString("name", name))
 710                 {
 711                         // if this module is already loaded, the erase will succeed, so we need do nothing
 712                         // otherwise, we need to add the module (which will be done later)
 713                         if (removed_modules.erase(name) == 0)
 714                                 added_modules.push_back(name);
 715                 }
 716         }
 717
 718         if (ConfValue("options")->getBool("allowhalfop") && removed_modules.erase("m_halfop.so") == 0)
 719                 added_modules.push_back("m_halfop.so");
 720
 721         for (std::set<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
 722         {
 723                 // Don't remove cmd_*.so, just remove m_*.so
 724                 if (removing->c_str()[0] == 'c')
 725                         continue;
 726                 Module* m = ServerInstance->Modules->Find(*removing);
 727                 if (m && ServerInstance->Modules->Unload(m))
 728                 {
 729                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH UNLOADED MODULE: %s",removing->c_str());
 730
 731                         if (user)
 732                                 user->WriteNumeric(RPL_UNLOADEDMODULE, "%s %s :Module %s successfully unloaded.",user->nick.c_str(), removing->c_str(), removing->c_str());
 733                         else
 734                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully unloaded.", removing->c_str());
 735                 }
 736                 else
 737                 {
 738                         if (user)
 739                                 user->WriteNumeric(ERR_CANTUNLOADMODULE, "%s %s :Failed to unload module %s: %s",user->nick.c_str(), removing->c_str(), removing->c_str(), ServerInstance->Modules->LastError().c_str());
 740                         else
 741                                  ServerInstance->SNO->WriteGlobalSno('a', "Failed to unload module %s: %s", removing->c_str(), ServerInstance->Modules->LastError().c_str());
 742                 }
 743         }
 744
 745         for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 746         {
 747                 if (ServerInstance->Modules->Load(adding->c_str()))
 748                 {
 749                         ServerInstance->SNO->WriteGlobalSno('a', "*** REHASH LOADED MODULE: %s",adding->c_str());
 750                         if (user)
 751                                 user->WriteNumeric(RPL_LOADEDMODULE, "%s %s :Module %s successfully loaded.",user->nick.c_str(), adding->c_str(), adding->c_str());
 752                         else
 753                                 ServerInstance->SNO->WriteGlobalSno('a', "Module %s successfully loaded.", adding->c_str());
 754                 }
 755                 else
 756                 {
 757                         if (user)
 758                                 user->WriteNumeric(ERR_CANTLOADMODULE, "%s %s :Failed to load module %s: %s",user->nick.c_str(), adding->c_str(), adding->c_str(), ServerInstance->Modules->LastError().c_str());
 759                         else
 760                                 ServerInstance->SNO->WriteGlobalSno('a', "Failed to load module %s: %s", adding->c_str(), ServerInstance->Modules->LastError().c_str());
 761                 }
 762         }
 763 }
 764
 765 bool ServerConfig::StartsWithWindowsDriveLetter(const std::string &path)
 766 {
 767         return (path.length() > 2 && isalpha(path[0]) && path[1] == ':');
 768 }
 769
 770 ConfigTag* ServerConfig::ConfValue(const std::string &tag)
 771 {
 772         ConfigDataHash::iterator iter = config_data.find(tag);
 773         if (iter == config_data.end())
 774                 return NULL;
 775         return iter->second;
 776 }
 777
 778 ConfigTagList ServerConfig::ConfTags(const std::string& tag)
 779 {
 780         return config_data.equal_range(tag);
 781 }
 782
 783 /** Read the contents of a file located by `fname' into a file_cache pointed at by `F'.
 784  */
 785 bool ServerConfig::ReadFile(file_cache &F, const std::string& fname)
 786 {
 787         if (fname.empty())
 788                 return false;
 789
 790         char linebuf[MAXBUF];
 791
 792         F.clear();
 793
 794         FileWrapper file(fopen(fname.c_str(), "r"));
 795
 796         if (!file)
 797                 return false;
 798         while (!feof(file))
 799         {
 800                 if (fgets(linebuf, sizeof(linebuf), file))
 801                         linebuf[strlen(linebuf)-1] = 0;
 802                 else
 803                         *linebuf = 0;
 804
 805                 F.push_back(*linebuf ? linebuf : " ");
 806         }
 807
 808         return true;
 809 }
 810
 811 bool ServerConfig::FileExists(const char* file)
 812 {
 813         struct stat sb;
 814         if (stat(file, &sb) == -1)
 815                 return false;
 816
 817         if ((sb.st_mode & S_IFDIR) > 0)
 818                 return false;
 819
 820         FILE *input = fopen(file, "r");
 821         if (input == NULL)
 822                 return false;
 823         else
 824         {
 825                 fclose(input);
 826                 return true;
 827         }
 828 }
 829
 830 const char* ServerConfig::CleanFilename(const char* name)
 831 {
 832         const char* p = name + strlen(name);
 833         while ((p != name) && (*p != '/') && (*p != '\\')) p--;
 834         return (p != name ? ++p : p);
 835 }
 836
 837 std::string ServerConfig::GetSID()
 838 {
 839         return sid;
 840 }
 841
 842 void ConfigReaderThread::Run()
 843 {
 844         Config->Read();
 845         done = true;
 846 }
 847
 848 void ConfigReaderThread::Finish()
 849 {
 850         ServerConfig* old = ServerInstance->Config;
 851         ServerInstance->Logs->Log("CONFIG",DEBUG,"Switching to new configuration...");
 852         ServerInstance->Logs->CloseLogs();
 853         ServerInstance->Config = this->Config;
 854         ServerInstance->Logs->OpenFileLogs();
 855         Config->Apply(old, TheUserUID);
 856
 857         if (Config->valid)
 858         {
 859                 /*
 860                  * Apply the changed configuration from the rehash.
 861                  *
 862                  * XXX: The order of these is IMPORTANT, do not reorder them without testing
 863                  * thoroughly!!!
 864                  */
 865                 ServerInstance->XLines->CheckELines();
 866                 ServerInstance->XLines->CheckELines();
 867                 ServerInstance->XLines->ApplyLines();
 868                 ServerInstance->Res->Rehash();
 869                 ServerInstance->ResetMaxBans();
 870                 Config->ApplyDisabledCommands(Config->DisabledCommands);
 871                 User* user = TheUserUID.empty() ? ServerInstance->FindNick(TheUserUID) : NULL;
 872                 FOREACH_MOD(I_OnRehash, OnRehash(user));
 873                 ServerInstance->BuildISupport();
 874
 875                 Config = old;
 876         }
 877         else
 878         {
 879                 // whoops, abort!
 880                 ServerInstance->Logs->CloseLogs();
 881                 ServerInstance->Config = old;
 882                 ServerInstance->Logs->OpenFileLogs();
 883         }
 884 }