/* +------------------------------------+ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * * InspIRCd: (C) 2002-2009 InspIRCd Development Team * See: http://wiki.inspircd.org/Credits * * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ /* $Core */ /* $CopyInstall: conf/inspircd.quotes.example $(CONPATH) */ /* $CopyInstall: conf/inspircd.rules.example $(CONPATH) */ /* $CopyInstall: conf/inspircd.motd.example $(CONPATH) */ /* $CopyInstall: conf/inspircd.helpop-full.example $(CONPATH) */ /* $CopyInstall: conf/inspircd.helpop.example $(CONPATH) */ /* $CopyInstall: conf/inspircd.censor.example $(CONPATH) */ /* $CopyInstall: conf/inspircd.filter.example $(CONPATH) */ /* $CopyInstall: conf/inspircd.conf.example $(CONPATH) */ /* $CopyInstall: conf/modules.conf.example $(CONPATH) */ /* $CopyInstall: conf/opers.conf.example $(CONPATH) */ /* $CopyInstall: conf/links.conf.example $(CONPATH) */ /* $CopyInstall: .gdbargs $(BASE) */ #include "inspircd.h" #include #include "xline.h" #include "exitcodes.h" #include "commands/cmd_whowas.h" #include "modes/cmode_h.h" ServerConfig::ServerConfig() { *sid = *ServerName = *Network = *ServerDesc = *AdminName = '\0'; *HideWhoisServer = *AdminEmail = *AdminNick = *diepass = *restartpass = *FixedQuit = *HideKillsServer = '\0'; *DefaultModes = *CustomVersion = *motd = *rules = *PrefixQuit = *DieValue = *DNSServer = '\0'; *UserStats = *DisabledCommands = *SuffixQuit = '\0'; WhoWasGroupSize = WhoWasMaxGroups = WhoWasMaxKeep = 0; log_file = NULL; NoUserDns = forcedebug = OperSpyWhois = nofork = HideBans = HideSplits = UndernetMsgPrefix = false; CycleHosts = writelog = AllowHalfop = InvBypassModes = true; dns_timeout = DieDelay = 5; MaxTargets = 20; NetBufferSize = 10240; SoftLimit = ServerInstance->SE->GetMaxFds(); MaxConn = SOMAXCONN; MaxWhoResults = 0; debugging = 0; MaxChans = 20; OperMaxChans = 30; c_ipv4_range = 32; c_ipv6_range = 128; } void ServerConfig::Update005() { std::stringstream out(data005); std::string token; std::string line5; int token_counter = 0; isupport.clear(); while (out >> token) { line5 = line5 + token + " "; token_counter++; if (token_counter >= 13) { char buf[MAXBUF]; snprintf(buf, MAXBUF, "%s:are supported by this server", line5.c_str()); isupport.push_back(buf); line5.clear(); token_counter = 0; } } if (!line5.empty()) { char buf[MAXBUF]; snprintf(buf, MAXBUF, "%s:are supported by this server", line5.c_str()); isupport.push_back(buf); } } void ServerConfig::Send005(User* user) { for (std::vector::iterator line = ServerInstance->Config->isupport.begin(); line != ServerInstance->Config->isupport.end(); line++) user->WriteNumeric(RPL_ISUPPORT, "%s %s", user->nick.c_str(), line->c_str()); } bool ServerConfig::CheckOnce(const char* tag) { int count = ConfValueEnum(tag); if (count > 1) throw CoreException("You have more than one <"+std::string(tag)+"> tag, this is not permitted."); if (count < 1) throw CoreException("You have not defined a <"+std::string(tag)+"> tag, this is required."); return true; } static void ValidateNoSpaces(const char* p, const std::string &tag, const std::string &val) { for (const char* ptr = p; *ptr; ++ptr) { if (*ptr == ' ') throw CoreException("The value of <"+tag+":"+val+"> cannot contain spaces"); } } /* NOTE: Before anyone asks why we're not using inet_pton for this, it is because inet_pton and friends do not return so much detail, * even in strerror(errno). They just return 'yes' or 'no' to an address without such detail as to whats WRONG with the address. * Because ircd users arent as technical as they used to be (;)) we are going to give more of a useful error message. */ static void ValidateIP(const char* p, const std::string &tag, const std::string &val, bool wild) { int num_dots = 0; int num_seps = 0; int not_numbers = false; int not_hex = false; if (*p) { if (*p == '.') throw CoreException("The value of <"+tag+":"+val+"> is not an IP address"); for (const char* ptr = p; *ptr; ++ptr) { if (wild && (*ptr == '*' || *ptr == '?' || *ptr == '/')) continue; if (*ptr != ':' && *ptr != '.') { if (*ptr < '0' || *ptr > '9') not_numbers = true; if ((*ptr < '0' || *ptr > '9') && (toupper(*ptr) < 'A' || toupper(*ptr) > 'F')) not_hex = true; } switch (*ptr) { case ' ': throw CoreException("The value of <"+tag+":"+val+"> is not an IP address"); case '.': num_dots++; break; case ':': num_seps++; break; } } if (num_dots > 3) throw CoreException("The value of <"+tag+":"+val+"> is an IPv4 address with too many fields!"); if (num_seps > 8) throw CoreException("The value of <"+tag+":"+val+"> is an IPv6 address with too many fields!"); if (num_seps == 0 && num_dots < 3 && !wild) throw CoreException("The value of <"+tag+":"+val+"> looks to be a malformed IPv4 address"); if (num_seps == 0 && num_dots == 3 && not_numbers) throw CoreException("The value of <"+tag+":"+val+"> contains non-numeric characters in an IPv4 address"); if (num_seps != 0 && not_hex) throw CoreException("The value of <"+tag+":"+val+"> contains non-hexdecimal characters in an IPv6 address"); if (num_seps != 0 && num_dots != 3 && num_dots != 0 && !wild) throw CoreException("The value of <"+tag+":"+val+"> is a malformed IPv6 4in6 address"); } } static void ValidateHostname(const char* p, const std::string &tag, const std::string &val) { int num_dots = 0; if (*p) { if (*p == '.') throw CoreException("The value of <"+tag+":"+val+"> is not a valid hostname"); for (const char* ptr = p; *ptr; ++ptr) { switch (*ptr) { case ' ': throw CoreException("The value of <"+tag+":"+val+"> is not a valid hostname"); case '.': num_dots++; break; } } if (num_dots == 0) throw CoreException("The value of <"+tag+":"+val+"> is not a valid hostname"); } } // Specialized validators static bool ValidateMaxTargets(ServerConfig* conf, const char*, const char*, ValueItem &data) { if ((data.GetInteger() < 1) || (data.GetInteger() > 31)) { ServerInstance->Logs->Log("CONFIG",DEFAULT,"WARNING: value is greater than 31 or less than 1, set to 20."); data.Set(20); } return true; } static bool ValidateSoftLimit(ServerConfig* conf, const char*, const char*, ValueItem &data) { if ((data.GetInteger() < 1) || (data.GetInteger() > ServerInstance->SE->GetMaxFds())) { ServerInstance->Logs->Log("CONFIG",DEFAULT,"WARNING: value is greater than %d or less than 0, set to %d.",ServerInstance->SE->GetMaxFds(),ServerInstance->SE->GetMaxFds()); data.Set(ServerInstance->SE->GetMaxFds()); } return true; } static bool ValidateMaxConn(ServerConfig* conf, const char*, const char*, ValueItem &data) { if (data.GetInteger() > SOMAXCONN) ServerInstance->Logs->Log("CONFIG",DEFAULT,"WARNING: value may be higher than the system-defined SOMAXCONN value!"); return true; } bool ServerConfig::ApplyDisabledCommands(const char* data) { std::stringstream dcmds(data); std::string thiscmd; /* Enable everything first */ for (Commandtable::iterator x = ServerInstance->Parser->cmdlist.begin(); x != ServerInstance->Parser->cmdlist.end(); x++) x->second->Disable(false); /* Now disable all the ones which the user wants disabled */ while (dcmds >> thiscmd) { Commandtable::iterator cm = ServerInstance->Parser->cmdlist.find(thiscmd); if (cm != ServerInstance->Parser->cmdlist.end()) { cm->second->Disable(true); } } return true; } static bool ValidateDisabledUModes(ServerConfig* conf, const char*, const char*, ValueItem &data) { memset(conf->DisabledUModes, 0, sizeof(conf->DisabledUModes)); for (const unsigned char* p = (const unsigned char*)data.GetString(); *p; ++p) { if (*p < 'A' || *p > ('A' + 64)) throw CoreException(std::string("Invalid usermode ")+(char)*p+" was found."); conf->DisabledUModes[*p - 'A'] = 1; } return true; } static bool ValidateDisabledCModes(ServerConfig* conf, const char*, const char*, ValueItem &data) { memset(conf->DisabledCModes, 0, sizeof(conf->DisabledCModes)); for (const unsigned char* p = (const unsigned char*)data.GetString(); *p; ++p) { if (*p < 'A' || *p > ('A' + 64)) throw CoreException(std::string("Invalid chanmode ")+(char)*p+" was found."); conf->DisabledCModes[*p - 'A'] = 1; } return true; } #ifdef WINDOWS // Note: the windows validator is in win32wrapper.cpp bool ValidateDnsServer(ServerConfig* conf, const char*, const char*, ValueItem &data); #else static bool ValidateDnsServer(ServerConfig* conf, const char*, const char*, ValueItem &data) { if (!*(data.GetString())) { std::string nameserver; // attempt to look up their nameserver from /etc/resolv.conf ServerInstance->Logs->Log("CONFIG",DEFAULT,"WARNING: not defined, attempting to find working server in /etc/resolv.conf..."); std::ifstream resolv("/etc/resolv.conf"); bool found_server = false; if (resolv.is_open()) { while (resolv >> nameserver) { if ((nameserver == "nameserver") && (!found_server)) { resolv >> nameserver; data.Set(nameserver.c_str()); found_server = true; ServerInstance->Logs->Log("CONFIG",DEFAULT," set to '%s' as first resolver in /etc/resolv.conf.",nameserver.c_str()); } } if (!found_server) { ServerInstance->Logs->Log("CONFIG",DEFAULT,"/etc/resolv.conf contains no viable nameserver entries! Defaulting to nameserver '127.0.0.1'!"); data.Set("127.0.0.1"); } } else { ServerInstance->Logs->Log("CONFIG",DEFAULT,"/etc/resolv.conf can't be opened! Defaulting to nameserver '127.0.0.1'!"); data.Set("127.0.0.1"); } } return true; } #endif static bool ValidateServerName(ServerConfig* conf, const char*, const char*, ValueItem &data) { ServerInstance->Logs->Log("CONFIG",DEFAULT,"Validating server name"); /* If we already have a servername, and they changed it, we should throw an exception. */ if (!strchr(data.GetString(), '.')) { ServerInstance->Logs->Log("CONFIG",DEFAULT,"WARNING: '%s' is not a fully-qualified domain name. Changed to '%s.'", data.GetString(),data.GetString()); std::string moo = data.GetValue(); data.Set(moo.append(".")); } ValidateHostname(data.GetString(), "server", "name"); return true; } static bool ValidateNetBufferSize(ServerConfig* conf, const char*, const char*, ValueItem &data) { // 65534 not 65535 because of null terminator if ((!data.GetInteger()) || (data.GetInteger() > 65534) || (data.GetInteger() < 1024)) { ServerInstance->Logs->Log("CONFIG",DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240."); data.Set(10240); } return true; } static bool ValidateMaxWho(ServerConfig* conf, const char*, const char*, ValueItem &data) { if ((data.GetInteger() > 65535) || (data.GetInteger() < 1)) { ServerInstance->Logs->Log("CONFIG",DEFAULT," size out of range, setting to default of 128."); data.Set(128); } return true; } static bool ValidateHalfOp(ServerConfig* conf, const char*, const char*, ValueItem &data) { ModeHandler* mh = ServerInstance->Modes->FindMode('h', MODETYPE_CHANNEL); if (data.GetBool() && !mh) { ServerInstance->Logs->Log("CONFIG", DEFAULT, "Enabling halfop mode."); mh = new ModeChannelHalfOp; ServerInstance->Modes->AddMode(mh); } else if (!data.GetBool() && mh) { ServerInstance->Logs->Log("CONFIG", DEFAULT, "Disabling halfop mode."); ServerInstance->Modes->DelMode(mh); delete mh; } return true; } static bool ValidateMotd(ServerConfig* conf, const char*, const char*, ValueItem &data) { conf->ReadFile(conf->MOTD, data.GetString()); return true; } static bool ValidateNotEmpty(ServerConfig*, const char* tag, const char* val, ValueItem &data) { if (data.GetValue().empty()) throw CoreException(std::string("The value for <")+tag+":"+val+"> cannot be empty!"); return true; } static bool ValidateRules(ServerConfig* conf, const char*, const char*, ValueItem &data) { conf->ReadFile(conf->RULES, data.GetString()); return true; } static bool ValidateModeLists(ServerConfig* conf, const char*, const char*, ValueItem &data) { memset(conf->HideModeLists, 0, sizeof(conf->HideModeLists)); for (const unsigned char* x = (const unsigned char*)data.GetString(); *x; ++x) conf->HideModeLists[*x] = true; return true; } static bool ValidateExemptChanOps(ServerConfig* conf, const char*, const char*, ValueItem &data) { memset(conf->ExemptChanOps, 0, sizeof(conf->ExemptChanOps)); for (const unsigned char* x = (const unsigned char*)data.GetString(); *x; ++x) conf->ExemptChanOps[*x] = true; return true; } static bool ValidateInvite(ServerConfig* conf, const char*, const char*, ValueItem &data) { const std::string& v = data.GetValue(); if (v == "ops") conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_OPS; else if (v == "all") conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_ALL; else if (v == "dynamic") conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_DYNAMIC; else conf->AnnounceInvites = ServerConfig::INVITE_ANNOUNCE_NONE; return true; } static bool ValidateSID(ServerConfig* conf, const char*, const char*, ValueItem &data) { ServerInstance->Logs->Log("CONFIG",DEFAULT,"Validating server id"); const char *sid = data.GetString(); if (*sid && !ServerInstance->IsSID(sid)) { throw CoreException(std::string(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."); } strlcpy(conf->sid, sid, 5); return true; } static bool ValidateWhoWas(ServerConfig* conf, const char*, const char*, ValueItem &data) { conf->WhoWasMaxKeep = ServerInstance->Duration(data.GetString()); if (conf->WhoWasGroupSize < 0) conf->WhoWasGroupSize = 0; if (conf->WhoWasMaxGroups < 0) conf->WhoWasMaxGroups = 0; if (conf->WhoWasMaxKeep < 3600) { conf->WhoWasMaxKeep = 3600; ServerInstance->Logs->Log("CONFIG",DEFAULT,"WARNING: value less than 3600, setting to default 3600"); } Module* whowas = ServerInstance->Modules->Find("cmd_whowas.so"); if (whowas) { WhowasRequest(NULL, whowas, WhowasRequest::WHOWAS_PRUNE).Send(); } return true; } /* Callback called to process a single tag */ static bool DoULine(ServerConfig* conf, const char*, const char**, ValueList &values, int*) { const char* server = values[0].GetString(); const bool silent = values[1].GetBool(); conf->ulines[server] = silent; return true; } /* Callback called to process a single tag */ static bool DoMaxBans(ServerConfig* conf, const char*, const char**, ValueList &values, int*) { const char* channel = values[0].GetString(); int limit = values[1].GetInteger(); conf->maxbans[channel] = limit; return true; } static bool DoZLine(ServerConfig* conf, const char* tag, const char** entries, ValueList &values, int* types) { const char* reason = values[0].GetString(); const char* ipmask = values[1].GetString(); ZLine* zl = new ZLine(ServerInstance->Time(), 0, "", reason, ipmask); if (!ServerInstance->XLines->AddLine(zl, NULL)) delete zl; return true; } static bool DoQLine(ServerConfig* conf, const char* tag, const char** entries, ValueList &values, int* types) { const char* reason = values[0].GetString(); const char* nick = values[1].GetString(); QLine* ql = new QLine(ServerInstance->Time(), 0, "", reason, nick); if (!ServerInstance->XLines->AddLine(ql, NULL)) delete ql; return true; } static bool DoKLine(ServerConfig* conf, const char* tag, const char** entries, ValueList &values, int* types) { const char* reason = values[0].GetString(); const char* host = values[1].GetString(); XLineManager* xlm = ServerInstance->XLines; IdentHostPair ih = xlm->IdentSplit(host); KLine* kl = new KLine(ServerInstance->Time(), 0, "", reason, ih.first.c_str(), ih.second.c_str()); if (!xlm->AddLine(kl, NULL)) delete kl; return true; } static bool DoELine(ServerConfig* conf, const char* tag, const char** entries, ValueList &values, int* types) { const char* reason = values[0].GetString(); const char* host = values[1].GetString(); XLineManager* xlm = ServerInstance->XLines; IdentHostPair ih = xlm->IdentSplit(host); ELine* el = new ELine(ServerInstance->Time(), 0, "", reason, ih.first.c_str(), ih.second.c_str()); if (!xlm->AddLine(el, NULL)) delete el; return true; } static bool DoType(ServerConfig* conf, const char*, const char**, ValueList &values, int*) { const char* TypeName = values[0].GetString(); const char* Classes = values[1].GetString(); conf->opertypes[TypeName] = std::string(Classes); return true; } static bool DoClass(ServerConfig* conf, const char* tag, const char**, ValueList &values, int*) { const char* ClassName = values[0].GetString(); const char* CommandList = values[1].GetString(); const char* UModeList = values[2].GetString(); const char* CModeList = values[3].GetString(); const char *PrivsList = values[4].GetString(); for (const char* c = UModeList; *c; ++c) { if ((*c < 'A' || *c > 'z') && *c != '*') { throw CoreException("Character " + std::string(1, *c) + " is not a valid mode in "); } } for (const char* c = CModeList; *c; ++c) { if ((*c < 'A' || *c > 'z') && *c != '*') { throw CoreException("Character " + std::string(1, *c) + " is not a valid mode in "); } } conf->operclass[ClassName].commandlist = CommandList; conf->operclass[ClassName].umodelist = UModeList; conf->operclass[ClassName].cmodelist = CModeList; conf->operclass[ClassName].privs = PrivsList; return true; } void ServerConfig::CrossCheckOperClassType() { for (int i = 0; i < ConfValueEnum("type"); ++i) { char item[MAXBUF], classn[MAXBUF], classes[MAXBUF]; std::string classname; ConfValue("type", "classes", "", i, classes, MAXBUF, false); irc::spacesepstream str(classes); ConfValue("type", "name", "", i, item, MAXBUF, false); while (str.GetToken(classname)) { std::string lost; bool foundclass = false; for (int j = 0; j < ConfValueEnum("class"); ++j) { ConfValue("class", "name", "", j, classn, MAXBUF, false); if (!strcmp(classn, classname.c_str())) { foundclass = true; break; } } if (!foundclass) { char msg[MAXBUF]; snprintf(msg, MAXBUF, " Warning: Oper type '%s' has a missing class named '%s', this does nothing!\n", item, classname.c_str()); throw CoreException(msg); } } } } void ServerConfig::CrossCheckConnectBlocks(ServerConfig* current) { typedef std::map ClassMap; ClassMap oldBlocksByMask; if (current) { for(ClassVector::iterator i = current->Classes.begin(); i != current->Classes.end(); ++i) { ConnectClass* c = *i; std::string typeMask = (c->type == CC_ALLOW) ? "a" : "d"; typeMask += c->host; oldBlocksByMask[typeMask] = c; } } int block_count = ConfValueEnum("connect"); ClassMap newBlocksByMask; Classes.resize(block_count, NULL); std::map names; bool try_again = true; for(int tries=0; try_again && tries < block_count + 1; tries++) { try_again = false; for(int i=0; i < block_count; i++) { if (Classes[i]) continue; ConnectClass* parent = NULL; std::string parentName; if (ConfValue("connect", "parent", i, parentName, false)) { std::map::iterator parentIter = names.find(parentName); if (parentIter == names.end()) { try_again = true; // couldn't find parent this time. If it's the last time, we'll never find it. if (tries == block_count) throw CoreException("Could not find parent connect class \"" + parentName + "\" for connect block " + ConvToStr(i)); continue; } parent = Classes[parentIter->second]; } std::string name; if (ConfValue("connect", "name", i, name, false)) { if (names.find(name) != names.end()) throw CoreException("Two connect classes with name \"" + name + "\" defined!"); names[name] = i; } std::string mask, typeMask; char type; if (ConfValue("connect", "allow", i, mask, false)) { type = CC_ALLOW; typeMask = 'a' + mask; } else if (ConfValue("connect", "deny", i, mask, false)) { type = CC_DENY; typeMask = 'd' + mask; } else { throw CoreException("Connect class must have an allow or deny mask (#" + ConvToStr(i) + ")"); } ClassMap::iterator dupMask = newBlocksByMask.find(typeMask); if (dupMask != newBlocksByMask.end()) throw CoreException("Two connect classes cannot have the same mask (" + mask + ")"); ConnectClass* me = parent ? new ConnectClass(type, mask, *parent) : new ConnectClass(type, mask); if (!name.empty()) me->name = name; std::string tmpv; if (ConfValue("connect", "password", i, tmpv, false)) me->pass= tmpv; if (ConfValue("connect", "hash", i, tmpv, false)) me->hash = tmpv; if (ConfValue("connect", "timeout", i, tmpv, false)) me->registration_timeout = atol(tmpv.c_str()); if (ConfValue("connect", "pingfreq", i, tmpv, false)) me->pingtime = atol(tmpv.c_str()); if (ConfValue("connect", "sendq", i, tmpv, false)) me->sendqmax = atol(tmpv.c_str()); if (ConfValue("connect", "recvq", i, tmpv, false)) me->recvqmax = atol(tmpv.c_str()); if (ConfValue("connect", "localmax", i, tmpv, false)) me->maxlocal = atol(tmpv.c_str()); if (ConfValue("connect", "globalmax", i, tmpv, false)) me->maxglobal = atol(tmpv.c_str()); if (ConfValue("connect", "port", i, tmpv, false)) me->port = atol(tmpv.c_str()); if (ConfValue("connect", "maxchans", i, tmpv, false)) me->maxchans = atol(tmpv.c_str()); if (ConfValue("connect", "limit", i, tmpv, false)) me->limit = atol(tmpv.c_str()); ClassMap::iterator oldMask = oldBlocksByMask.find(typeMask); if (oldMask != oldBlocksByMask.end()) { ConnectClass* old = oldMask->second; oldBlocksByMask.erase(oldMask); old->Update(me); delete me; me = old; } newBlocksByMask[typeMask] = me; Classes[i] = me; } } for(ClassMap::iterator toRemove = oldBlocksByMask.begin(); toRemove != oldBlocksByMask.end(); toRemove++) { removed_classes.push_back(toRemove->second); } } static const Deprecated ChangedConfig[] = { {"options", "hidelinks", "has been moved to as of 1.2a3"}, {"options", "hidewhois", "has been moved to as of 1.2a3"}, {"options", "userstats", "has been moved to as of 1.2a3"}, {"options", "customversion", "has been moved to as of 1.2a3"}, {"options", "hidesplits", "has been moved to as of 1.2a3"}, {"options", "hidebans", "has been moved to as of 1.2a3"}, {"options", "hidekills", "has been moved to as of 1.2a3"}, {"options", "operspywhois", "has been moved to as of 1.2a3"}, {"options", "announceinvites", "has been moved to as of 1.2a3"}, {"options", "hidemodes", "has been moved to as of 1.2a3"}, {"options", "maxtargets", "has been moved to as of 1.2a3"}, {"options", "nouserdns", "has been moved to as of 1.2a3"}, {"options", "maxwho", "has been moved to as of 1.2a3"}, {"options", "softlimit", "has been moved to as of 1.2a3"}, {"options", "somaxconn", "has been moved to as of 1.2a3"}, {"options", "netbuffersize", "has been moved to as of 1.2a3"}, {"options", "maxwho", "has been moved to as of 1.2a3"}, {"options", "loglevel", "1.2 does not use the loglevel value. Please define tags instead."}, {"die", "value", "has always been deprecated"}, }; /* These tags can occur ONCE or not at all */ static const InitialConfig Values[] = { {"performance", "softlimit", "0", new ValueContainerUInt (&ServerConfig::SoftLimit), DT_INTEGER, ValidateSoftLimit}, {"performance", "somaxconn", SOMAXCONN_S, new ValueContainerInt (&ServerConfig::MaxConn), DT_INTEGER, ValidateMaxConn}, {"options", "moronbanner", "You're banned!", new ValueContainerChar (&ServerConfig::MoronBanner), DT_CHARPTR, NULL}, {"server", "name", "", new ValueContainerChar (&ServerConfig::ServerName), DT_HOSTNAME, ValidateServerName}, {"server", "description", "Configure Me", new ValueContainerChar (&ServerConfig::ServerDesc), DT_CHARPTR, NULL}, {"server", "network", "Network", new ValueContainerChar (&ServerConfig::Network), DT_NOSPACES, NULL}, {"server", "id", "", new ValueContainerChar (&ServerConfig::sid), DT_CHARPTR, ValidateSID}, {"admin", "name", "", new ValueContainerChar (&ServerConfig::AdminName), DT_CHARPTR, NULL}, {"admin", "email", "Mis@configu.red", new ValueContainerChar (&ServerConfig::AdminEmail), DT_CHARPTR, NULL}, {"admin", "nick", "Misconfigured", new ValueContainerChar (&ServerConfig::AdminNick), DT_CHARPTR, NULL}, {"files", "motd", "", new ValueContainerChar (&ServerConfig::motd), DT_CHARPTR, ValidateMotd}, {"files", "rules", "", new ValueContainerChar (&ServerConfig::rules), DT_CHARPTR, ValidateRules}, {"power", "diepass", "", new ValueContainerChar (&ServerConfig::diepass), DT_CHARPTR, ValidateNotEmpty}, {"power", "pause", "", new ValueContainerInt (&ServerConfig::DieDelay), DT_INTEGER, NULL}, {"power", "hash", "", new ValueContainerChar (&ServerConfig::powerhash), DT_CHARPTR, NULL}, {"power", "restartpass", "", new ValueContainerChar (&ServerConfig::restartpass), DT_CHARPTR, ValidateNotEmpty}, {"options", "prefixquit", "", new ValueContainerChar (&ServerConfig::PrefixQuit), DT_CHARPTR, NULL}, {"options", "suffixquit", "", new ValueContainerChar (&ServerConfig::SuffixQuit), DT_CHARPTR, NULL}, {"options", "fixedquit", "", new ValueContainerChar (&ServerConfig::FixedQuit), DT_CHARPTR, NULL}, {"options", "prefixpart", "", new ValueContainerChar (&ServerConfig::PrefixPart), DT_CHARPTR, NULL}, {"options", "suffixpart", "", new ValueContainerChar (&ServerConfig::SuffixPart), DT_CHARPTR, NULL}, {"options", "fixedpart", "", new ValueContainerChar (&ServerConfig::FixedPart), DT_CHARPTR, NULL}, {"performance", "netbuffersize","10240", new ValueContainerInt (&ServerConfig::NetBufferSize), DT_INTEGER, ValidateNetBufferSize}, {"performance", "maxwho", "128", new ValueContainerInt (&ServerConfig::MaxWhoResults), DT_INTEGER, ValidateMaxWho}, {"options", "allowhalfop", "0", new ValueContainerBool (&ServerConfig::AllowHalfop), DT_BOOLEAN, ValidateHalfOp}, {"dns", "server", "", new ValueContainerChar (&ServerConfig::DNSServer), DT_IPADDRESS,ValidateDnsServer}, {"dns", "timeout", "5", new ValueContainerInt (&ServerConfig::dns_timeout), DT_INTEGER, NULL}, {"options", "moduledir", MOD_PATH, new ValueContainerString (&ServerConfig::ModPath), DT_CHARPTR, NULL}, {"disabled", "commands", "", new ValueContainerChar (&ServerConfig::DisabledCommands), DT_CHARPTR, NULL}, {"disabled", "usermodes", "", NULL, DT_NOTHING, ValidateDisabledUModes}, {"disabled", "chanmodes", "", NULL, DT_NOTHING, ValidateDisabledCModes}, {"disabled", "fakenonexistant", "0", new ValueContainerBool (&ServerConfig::DisabledDontExist), DT_BOOLEAN, NULL}, {"security", "runasuser", "", new ValueContainerChar(&ServerConfig::SetUser), DT_CHARPTR, NULL}, {"security", "runasgroup", "", new ValueContainerChar(&ServerConfig::SetGroup), DT_CHARPTR, NULL}, {"security", "userstats", "", new ValueContainerChar (&ServerConfig::UserStats), DT_CHARPTR, NULL}, {"security", "customversion","", new ValueContainerChar (&ServerConfig::CustomVersion), DT_CHARPTR, NULL}, {"security", "hidesplits", "0", new ValueContainerBool (&ServerConfig::HideSplits), DT_BOOLEAN, NULL}, {"security", "hidebans", "0", new ValueContainerBool (&ServerConfig::HideBans), DT_BOOLEAN, NULL}, {"security", "hidewhois", "", new ValueContainerChar (&ServerConfig::HideWhoisServer), DT_NOSPACES, NULL}, {"security", "hidekills", "", new ValueContainerChar (&ServerConfig::HideKillsServer), DT_NOSPACES, NULL}, {"security", "operspywhois", "0", new ValueContainerBool (&ServerConfig::OperSpyWhois), DT_BOOLEAN, NULL}, {"security", "restrictbannedusers", "1", new ValueContainerBool (&ServerConfig::RestrictBannedUsers), DT_BOOLEAN, NULL}, {"security", "genericoper", "0", new ValueContainerBool (&ServerConfig::GenericOper), DT_BOOLEAN, NULL}, {"performance", "nouserdns", "0", new ValueContainerBool (&ServerConfig::NoUserDns), DT_BOOLEAN, NULL}, {"options", "syntaxhints", "0", new ValueContainerBool (&ServerConfig::SyntaxHints), DT_BOOLEAN, NULL}, {"options", "cyclehosts", "0", new ValueContainerBool (&ServerConfig::CycleHosts), DT_BOOLEAN, NULL}, {"options", "ircumsgprefix","0", new ValueContainerBool (&ServerConfig::UndernetMsgPrefix), DT_BOOLEAN, NULL}, {"security", "announceinvites", "1", NULL, DT_NOTHING, ValidateInvite}, {"options", "hostintopic", "1", new ValueContainerBool (&ServerConfig::FullHostInTopic), DT_BOOLEAN, NULL}, {"security", "hidemodes", "", NULL, DT_NOTHING, ValidateModeLists}, {"options", "exemptchanops","", NULL, DT_NOTHING, ValidateExemptChanOps}, {"security", "maxtargets", "20", new ValueContainerUInt (&ServerConfig::MaxTargets), DT_INTEGER, ValidateMaxTargets}, {"options", "defaultmodes", "nt", new ValueContainerChar (&ServerConfig::DefaultModes), DT_CHARPTR, NULL}, {"pid", "file", "", new ValueContainerString (&ServerConfig::PID), DT_CHARPTR, NULL}, {"whowas", "groupsize", "10", new ValueContainerInt (&ServerConfig::WhoWasGroupSize), DT_INTEGER, NULL}, {"whowas", "maxgroups", "10240", new ValueContainerInt (&ServerConfig::WhoWasMaxGroups), DT_INTEGER, NULL}, {"whowas", "maxkeep", "3600", NULL, DT_NOTHING, ValidateWhoWas}, {"die", "value", "", new ValueContainerChar (&ServerConfig::DieValue), DT_CHARPTR, NULL}, {"channels", "users", "20", new ValueContainerUInt (&ServerConfig::MaxChans), DT_INTEGER, NULL}, {"channels", "opers", "60", new ValueContainerUInt (&ServerConfig::OperMaxChans), DT_INTEGER, NULL}, {"cidr", "ipv4clone", "32", new ValueContainerInt (&ServerConfig::c_ipv4_range), DT_INTEGER, NULL}, {"cidr", "ipv6clone", "128", new ValueContainerInt (&ServerConfig::c_ipv6_range), DT_INTEGER, NULL}, {"limits", "maxnick", "32", new ValueContainerLimit (&ServerLimits::NickMax), DT_LIMIT, NULL}, {"limits", "maxchan", "64", new ValueContainerLimit (&ServerLimits::ChanMax), DT_LIMIT, NULL}, {"limits", "maxmodes", "20", new ValueContainerLimit (&ServerLimits::MaxModes), DT_LIMIT, NULL}, {"limits", "maxident", "11", new ValueContainerLimit (&ServerLimits::IdentMax), DT_LIMIT, NULL}, {"limits", "maxquit", "255", new ValueContainerLimit (&ServerLimits::MaxQuit), DT_LIMIT, NULL}, {"limits", "maxtopic", "307", new ValueContainerLimit (&ServerLimits::MaxTopic), DT_LIMIT, NULL}, {"limits", "maxkick", "255", new ValueContainerLimit (&ServerLimits::MaxKick), DT_LIMIT, NULL}, {"limits", "maxgecos", "128", new ValueContainerLimit (&ServerLimits::MaxGecos), DT_LIMIT, NULL}, {"limits", "maxaway", "200", new ValueContainerLimit (&ServerLimits::MaxAway), DT_LIMIT, NULL}, {"options", "invitebypassmodes", "1", new ValueContainerBool (&ServerConfig::InvBypassModes), DT_BOOLEAN, NULL}, }; /* These tags can occur multiple times, and therefore they have special code to read them * which is different to the code for reading the singular tags listed above. */ MultiConfig MultiValues[] = { {"connect", {"allow", "deny", "password", "timeout", "pingfreq", "sendq", "recvq", "localmax", "globalmax", "port", "name", "parent", "maxchans", "limit", "hash", NULL}, {"", "", "", "", "120", "", "", "3", "3", "0", "", "", "0", "0", "", NULL}, {DT_IPADDRESS|DT_ALLOW_WILD, DT_IPADDRESS|DT_ALLOW_WILD, DT_CHARPTR, DT_INTEGER, DT_INTEGER, DT_INTEGER, DT_INTEGER, DT_INTEGER, DT_INTEGER, DT_INTEGER, DT_NOSPACES, DT_NOSPACES, DT_INTEGER, DT_INTEGER, DT_CHARPTR}, NULL,}, {"uline", {"server", "silent", NULL}, {"", "0", NULL}, {DT_HOSTNAME, DT_BOOLEAN}, DoULine}, {"banlist", {"chan", "limit", NULL}, {"", "", NULL}, {DT_CHARPTR, DT_INTEGER}, DoMaxBans}, {"module", {"name", NULL}, {"", NULL}, {DT_CHARPTR}, NULL}, {"badip", {"reason", "ipmask", NULL}, {"No reason", "", NULL}, {DT_CHARPTR, DT_IPADDRESS|DT_ALLOW_WILD}, DoZLine}, {"badnick", {"reason", "nick", NULL}, {"No reason", "", NULL}, {DT_CHARPTR, DT_CHARPTR}, DoQLine}, {"badhost", {"reason", "host", NULL}, {"No reason", "", NULL}, {DT_CHARPTR, DT_CHARPTR}, DoKLine}, {"exception", {"reason", "host", NULL}, {"No reason", "", NULL}, {DT_CHARPTR, DT_CHARPTR}, DoELine}, {"type", {"name", "classes", NULL}, {"", "", NULL}, {DT_NOSPACES, DT_CHARPTR}, DoType}, {"class", {"name", "commands", "usermodes", "chanmodes", "privs", NULL}, {"", "", "", "", "", NULL}, {DT_NOSPACES, DT_CHARPTR, DT_CHARPTR, DT_CHARPTR, DT_CHARPTR}, DoClass}, }; /* These tags MUST occur and must ONLY occur once in the config file */ static const char* Once[] = { "server", "admin", "files", "power", "options" }; // WARNING: it is not safe to use most of the codebase in this function, as it // will run in the config reader thread void ServerConfig::Read() { /* Load and parse the config file, if there are any errors then explode */ if (!this->DoInclude(ServerInstance->ConfigFileName, true)) { valid = false; return; } } void ServerConfig::Apply(ServerConfig* old, const std::string &useruid) { valid = true; /* std::ostringstream::clear() does not clear the string itself, only the error flags. */ errstr.clear(); errstr.str().clear(); include_stack.clear(); /* The stuff in here may throw CoreException, be sure we're in a position to catch it. */ try { /* Check we dont have more than one of singular tags, or any of them missing */ for (int Index = 0; Index * sizeof(*Once) < sizeof(Once); Index++) CheckOnce(Once[Index]); for (int Index = 0; Index * sizeof(Deprecated) < sizeof(ChangedConfig); Index++) { char item[MAXBUF]; *item = 0; if (ConfValue(ChangedConfig[Index].tag, ChangedConfig[Index].value, "", 0, item, MAXBUF, true) || *item) throw CoreException(std::string("Your configuration contains a deprecated value: <") + ChangedConfig[Index].tag + ":" + ChangedConfig[Index].value + "> - " + ChangedConfig[Index].reason); } /* Read the values of all the tags which occur once or not at all, and call their callbacks. */ for (int Index = 0; Index * sizeof(*Values) < sizeof(Values); ++Index) { char item[MAXBUF]; int dt = Values[Index].datatype; bool allow_newlines = ((dt & DT_ALLOW_NEWLINE) > 0); bool allow_wild = ((dt & DT_ALLOW_WILD) > 0); dt &= ~DT_ALLOW_NEWLINE; dt &= ~DT_ALLOW_WILD; ConfValue(Values[Index].tag, Values[Index].value, Values[Index].default_value, 0, item, MAXBUF, allow_newlines); ValueItem vi(item); if (Values[Index].validation_function && !Values[Index].validation_function(this, Values[Index].tag, Values[Index].value, vi)) throw CoreException("One or more values in your configuration file failed to validate. Please see your ircd.log for more information."); switch (dt) { case DT_NOSPACES: { ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val; ValidateNoSpaces(vi.GetString(), Values[Index].tag, Values[Index].value); vcc->Set(this, vi); } break; case DT_HOSTNAME: { ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val; ValidateHostname(vi.GetString(), Values[Index].tag, Values[Index].value); vcc->Set(this, vi); } break; case DT_IPADDRESS: { ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val; ValidateIP(vi.GetString(), Values[Index].tag, Values[Index].value, allow_wild); vcc->Set(this, vi); } break; case DT_CHANNEL: { ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val; if (*(vi.GetString()) && !ServerInstance->IsChannel(vi.GetString(), MAXBUF)) { throw CoreException("The value of <"+std::string(Values[Index].tag)+":"+Values[Index].value+"> is not a valid channel name"); } vcc->Set(this, vi); } break; case DT_CHARPTR: { ValueContainerChar* vcc = dynamic_cast(Values[Index].val); if (vcc) vcc->Set(this, vi); ValueContainerString* vcs = dynamic_cast(Values[Index].val); if (vcs) vcs->Set(this, vi.GetValue()); } break; case DT_INTEGER: { int val = vi.GetInteger(); ValueContainerInt* vci = (ValueContainerInt*)Values[Index].val; vci->Set(this, val); } break; case DT_LIMIT: { int val = vi.GetInteger(); ValueContainerLimit* vci = (ValueContainerLimit*)Values[Index].val; vci->Set(this, val); } break; case DT_BOOLEAN: { bool val = vi.GetBool(); ValueContainerBool* vcb = (ValueContainerBool*)Values[Index].val; vcb->Set(this, val); } break; } } /* Read the multiple-tag items (class tags, connect tags, etc) * and call the callbacks associated with them. We have three * callbacks for these, a 'start', 'item' and 'end' callback. */ for (int Index = 0; Index * sizeof(MultiConfig) < sizeof(MultiValues); ++Index) { int number_of_tags = ConfValueEnum(MultiValues[Index].tag); for (int tagnum = 0; tagnum < number_of_tags; ++tagnum) { ValueList vl; for (int valuenum = 0; (MultiValues[Index].items[valuenum]) && (valuenum < MAX_VALUES_PER_TAG); ++valuenum) { int dt = MultiValues[Index].datatype[valuenum]; bool allow_newlines = ((dt & DT_ALLOW_NEWLINE) > 0); bool allow_wild = ((dt & DT_ALLOW_WILD) > 0); dt &= ~DT_ALLOW_NEWLINE; dt &= ~DT_ALLOW_WILD; switch (dt) { case DT_NOSPACES: { char item[MAXBUF]; if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines)) vl.push_back(ValueItem(item)); else vl.push_back(ValueItem("")); ValidateNoSpaces(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum]); } break; case DT_HOSTNAME: { char item[MAXBUF]; if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines)) vl.push_back(ValueItem(item)); else vl.push_back(ValueItem("")); ValidateHostname(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum]); } break; case DT_IPADDRESS: { char item[MAXBUF]; if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines)) vl.push_back(ValueItem(item)); else vl.push_back(ValueItem("")); ValidateIP(vl[vl.size()-1].GetString(), MultiValues[Index].tag, MultiValues[Index].items[valuenum], allow_wild); } break; case DT_CHANNEL: { char item[MAXBUF]; if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines)) vl.push_back(ValueItem(item)); else vl.push_back(ValueItem("")); if (!ServerInstance->IsChannel(vl[vl.size()-1].GetString(), MAXBUF)) throw CoreException("The value of <"+std::string(MultiValues[Index].tag)+":"+MultiValues[Index].items[valuenum]+"> number "+ConvToStr(tagnum + 1)+" is not a valid channel name"); } break; case DT_CHARPTR: { char item[MAXBUF]; if (ConfValue(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item, MAXBUF, allow_newlines)) vl.push_back(ValueItem(item)); else vl.push_back(ValueItem("")); } break; case DT_INTEGER: { int item = 0; if (ConfValueInteger(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum, item)) vl.push_back(ValueItem(item)); else vl.push_back(ValueItem(0)); } break; case DT_BOOLEAN: { bool item = ConfValueBool(MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum); vl.push_back(ValueItem(item)); } break; } } if (MultiValues[Index].validation_function) MultiValues[Index].validation_function(this, MultiValues[Index].tag, MultiValues[Index].items, vl, MultiValues[Index].datatype); } } /* Finalise the limits, increment them all by one so that we can just put assign(str, 0, val) * rather than assign(str, 0, val + 1) */ Limits.Finalise(); // Handle special items CrossCheckOperClassType(); CrossCheckConnectBlocks(old); } catch (CoreException &ce) { errstr << ce.GetReason(); valid = false; } // write once here, to try it out and make sure its ok ServerInstance->WritePID(this->PID); FailedPortList pl; ServerInstance->BindPorts(pl); /* * These values can only be set on boot. Keep their old values. Do it before we send messages so we actually have a servername. */ if (old) { memcpy(this->ServerName, old->ServerName, sizeof(this->ServerName)); memcpy(this->sid, old->sid, sizeof(this->sid)); } if (pl.size()) { errstr << "Not all your client ports could be bound.\nThe following port(s) failed to bind:\n"; int j = 1; for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++) { char buf[MAXBUF]; snprintf(buf, MAXBUF, "%d. Address: %s Reason: %s\n", j, i->first.empty() ? "" : i->first.c_str(), i->second.c_str()); errstr << buf; } } User* user = useruid.empty() ? NULL : ServerInstance->FindNick(useruid); valid = errstr.str().empty(); if (!valid) ServerInstance->Logs->Log("CONFIG",DEFAULT, "There were errors in your configuration file:"); while (errstr.good()) { std::string line; getline(errstr, line, '\n'); if (!line.empty()) { if (user) user->WriteServ("NOTICE %s :*** %s", user->nick.c_str(), line.c_str()); else ServerInstance->SNO->WriteGlobalSno('a', line); } if (!old) { // Starting up, so print it out so it's seen. XXX this is a bit of a hack. printf("%s\n", line.c_str()); } } errstr.clear(); errstr.str(std::string()); /* No old configuration -> initial boot, nothing more to do here */ if (!old) { if (!valid) { ServerInstance->Exit(EXIT_STATUS_CONFIG); } return; } // If there were errors processing configuration, don't touch modules. if (!valid) return; ApplyModules(user); for (std::vector::iterator i = removed_classes.begin(); i != removed_classes.end(); i++) { ConnectClass* c = *i; if (0 == --c->RefCount) delete c; } } void ServerConfig::ApplyModules(User* user) { const std::vector v = ServerInstance->Modules->GetAllModuleNames(0); std::vector added_modules; std::set removed_modules(v.begin(), v.end()); int new_module_count = ConfValueEnum("module"); for(int i=0; i < new_module_count; i++) { std::string name; if (ConfValue("module", "name", i, name, false)) { // if this module is already loaded, the erase will succeed, so we need do nothing // otherwise, we need to add the module (which will be done later) if (removed_modules.erase(name) == 0) added_modules.push_back(name); } } for (std::set::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++) { // Don't remove cmd_*.so, just remove m_*.so if (removing->c_str()[0] == 'c') continue; if (ServerInstance->Modules->Unload(removing->c_str())) { ServerInstance->SNO->WriteToSnoMask('a', "*** REHASH UNLOADED MODULE: %s",removing->c_str()); if (user) user->WriteNumeric(RPL_UNLOADEDMODULE, "%s %s :Module %s successfully unloaded.",user->nick.c_str(), removing->c_str(), removing->c_str()); else ServerInstance->SNO->WriteToSnoMask('a', "Module %s successfully unloaded.", removing->c_str()); } else { if (user) 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()); else ServerInstance->SNO->WriteToSnoMask('a', "Failed to unload module %s: %s", removing->c_str(), ServerInstance->Modules->LastError().c_str()); } } for (std::vector::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++) { if (ServerInstance->Modules->Load(adding->c_str())) { ServerInstance->SNO->WriteToSnoMask('a', "*** REHASH LOADED MODULE: %s",adding->c_str()); if (user) user->WriteNumeric(RPL_LOADEDMODULE, "%s %s :Module %s successfully loaded.",user->nick.c_str(), adding->c_str(), adding->c_str()); else ServerInstance->SNO->WriteToSnoMask('a', "Module %s successfully loaded.", adding->c_str()); } else { if (user) 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()); else ServerInstance->SNO->WriteToSnoMask('a', "Failed to load module %s: %s", adding->c_str(), ServerInstance->Modules->LastError().c_str()); } } if (user) user->WriteServ("NOTICE %s :*** Successfully rehashed server.", user->nick.c_str()); else ServerInstance->SNO->WriteToSnoMask('a', "*** Successfully rehashed server."); } bool ServerConfig::LoadConf(FILE* &conf, const char* filename, bool allowexeinc) { std::string line; char ch; long linenumber = 1; long last_successful_parse = 1; bool in_tag; bool in_quote; bool in_comment; int character_count = 0; in_tag = false; in_quote = false; in_comment = false; ServerInstance->Logs->Log("CONFIG", DEBUG, "Reading %s", filename); /* Check if the file open failed first */ if (!conf) { errstr << "LoadConf: Couldn't open config file: " << filename << std::endl; return false; } for (unsigned int t = 0; t < include_stack.size(); t++) { if (std::string(filename) == include_stack[t]) { errstr << "File " << filename << " is included recursively (looped inclusion)." << std::endl; return false; } } /* It's not already included, add it to the list of files we've loaded */ include_stack.push_back(filename); /* Start reading characters... */ while ((ch = fgetc(conf)) != EOF) { /* * Fix for moronic windows issue spotted by Adremelech. * Some windows editors save text files as utf-16, which is * a total pain in the ass to parse. Users should save in the * right config format! If we ever see a file where the first * byte is 0xFF or 0xFE, or the second is 0xFF or 0xFE, then * this is most likely a utf-16 file. Bail out and insult user. */ if ((character_count++ < 2) && (ch == '\xFF' || ch == '\xFE')) { errstr << "File " << filename << " cannot be read, as it is encoded in braindead UTF-16. Save your file as plain ASCII!" << std::endl; return false; } /* * Here we try and get individual tags on separate lines, * this would be so easy if we just made people format * their config files like that, but they don't so... * We check for a '<' and then know the line is over when * we get a '>' not inside quotes. If we find two '<' and * no '>' then die with an error. */ if ((ch == '#') && !in_quote) in_comment = true; switch (ch) { case '\n': if (in_quote) line += '\n'; linenumber++; case '\r': if (!in_quote) in_comment = false; case '\0': continue; case '\t': ch = ' '; } if(in_comment) continue; /* XXX: Added by Brain, May 1st 2006 - Escaping of characters. * Note that this WILL NOT usually allow insertion of newlines, * because a newline is two characters long. Use it primarily to * insert the " symbol. * * Note that this also involves a further check when parsing the line, * which can be found below. */ if ((ch == '\\') && (in_quote) && (in_tag)) { line += ch; char real_character; if (!feof(conf)) { real_character = fgetc(conf); if (real_character == 'n') real_character = '\n'; line += real_character; continue; } else { errstr << "End of file after a \\, what did you want to escape?: " << filename << ":" << linenumber << std::endl; return false; } } if (ch != '\r') line += ch; if ((ch != '<') && (!in_tag) && (!in_comment) && (ch > ' ') && (ch != 9)) { errstr << "You have stray characters beyond the tag which starts at " << filename << ":" << last_successful_parse << std::endl; return false; } if (ch == '<') { if (in_tag) { if (!in_quote) { errstr << "The tag at location " << filename << ":" << last_successful_parse << " was valid, but there is an error in the tag which comes after it. You are possibly missing a \" or >. Please check this." << std::endl; return false; } } else { if (in_quote) { errstr << "Parser error: Inside a quote but not within the last valid tag, which was opened at: " << filename << ":" << last_successful_parse << std::endl; return false; } else { // errstr << "Opening new config tag on line " << linenumber << std::endl; in_tag = true; } } } else if (ch == '"') { if (in_tag) { if (in_quote) { // errstr << "Closing quote in config tag on line " << linenumber << std::endl; in_quote = false; } else { // errstr << "Opening quote in config tag on line " << linenumber << std::endl; in_quote = true; } } else { if (in_quote) { errstr << "The tag immediately after the one at " << filename << ":" << last_successful_parse << " has a missing closing \" symbol. Please check this." << std::endl; } else { errstr << "You have opened a quote (\") beyond the tag at " << filename << ":" << last_successful_parse << " without opening a new tag. Please check this." << std::endl; } } } else if (ch == '>') { if (!in_quote) { if (in_tag) { // errstr << "Closing config tag on line " << linenumber << std::endl; in_tag = false; /* * If this finds an then ParseLine can simply call * LoadConf() and load the included config into the same ConfigDataHash */ long bl = linenumber; if (!this->ParseLine(filename, line, linenumber, allowexeinc)) return false; last_successful_parse = linenumber; linenumber = bl; line.clear(); } else { errstr << "You forgot to close the tag which comes immediately after the one at " << filename << ":" << last_successful_parse << std::endl; return false; } } } } /* Fix for bug #392 - if we reach the end of a file and we are still in a quote or comment, most likely the user fucked up */ if (in_comment || in_quote) { errstr << "Reached end of file whilst still inside a quoted section or tag. This is most likely an error or there \ is a newline missing from the end of the file: " << filename << ":" << linenumber << std::endl; } return true; } bool ServerConfig::LoadConf(FILE* &conf, const std::string &filename, bool allowexeinc) { return this->LoadConf(conf, filename.c_str(), allowexeinc); } bool ServerConfig::ParseLine(const std::string &filename, std::string &line, long &linenumber, bool allowexeinc) { std::string tagname; std::string current_key; std::string current_value; KeyValList results; char last_char = 0; bool got_name; bool got_key; bool in_quote; got_name = got_key = in_quote = false; for(std::string::iterator c = line.begin(); c != line.end(); c++) { if (!got_name) { /* We don't know the tag name yet. */ if (*c != ' ') { if (*c != '<') { if ((*c >= 'a' && *c <= 'z') || (*c >= 'A' && *c <='Z') || (*c >= '0' && *c <= '9') || *c == '_') tagname += *c; else { errstr << "Invalid character in value name of tag: '" << *c << "' in value '" << tagname << "' in filename: " << filename << ":" << linenumber << std::endl; return false; } } } else { /* We got to a space, we should have the tagname now. */ if(tagname.length()) { got_name = true; } } } else { /* We have the tag name */ if (!got_key) { /* We're still reading the key name */ if ((*c != '=') && (*c != '>')) { if (*c != ' ') { if ((*c >= 'a' && *c <= 'z') || (*c >= 'A' && *c <='Z') || (*c >= '0' && *c <= '9') || *c == '_') current_key += *c; else { errstr << "Invalid character in key: '" << *c << "' in key '" << current_key << "' in filename: " << filename << ":" << linenumber << std::endl; return false; } } } else { /* We got an '=', end of the key name. */ got_key = true; } } else { /* We have the key name, now we're looking for quotes and the value */ /* Correctly handle escaped characters here. * See the XXX'ed section above. */ if ((*c == '\\') && (in_quote)) { c++; if (*c == 'n') current_value += '\n'; else current_value += *c; continue; } else if ((*c == '\\') && (!in_quote)) { errstr << "You can't have an escape sequence outside of a quoted section: " << filename << ":" << linenumber << std::endl; return false; } else if ((*c == '\n') && (in_quote)) { /* Got a 'real' \n, treat it as part of the value */ current_value += '\n'; continue; } else if ((*c == '\r') && (in_quote)) { /* Got a \r, drop it */ continue; } if (*c == '"') { if (!in_quote) { /* We're not already in a quote. */ in_quote = true; } else { /* Leaving the quotes, we have the current value */ results.push_back(KeyVal(current_key, current_value)); // std::cout << "<" << tagname << ":" << current_key << "> " << current_value << std::endl; in_quote = false; got_key = false; if ((tagname == "include") && (current_key == "file")) { if (!this->DoInclude(current_value, allowexeinc)) return false; } else if ((tagname == "include") && (current_key == "executable")) { if (!allowexeinc) { errstr << "Executable includes are not allowed to use \n" "This could be an attempt to execute commands from a malicious remote include.\n" "If you need multiple levels of remote include, create a script to assemble the " "contents locally or include files using \n"; return false; } /* Pipe an executable and use its stdout as config data */ if (!this->DoPipe(current_value)) return false; } current_key.clear(); current_value.clear(); } } else { if (in_quote) { last_char = *c; current_value += *c; } } } } } /* Finished parsing the tag, add it to the config hash */ config_data.insert(std::pair (tagname, results)); return true; } bool ServerConfig::DoPipe(const std::string &file) { FILE* conf = popen(file.c_str(), "r"); bool ret = false; if (conf) { ret = LoadConf(conf, file.c_str(), false); pclose(conf); } else errstr << "Couldn't execute: " << file << std::endl; return ret; } bool ServerConfig::StartsWithWindowsDriveLetter(const std::string &path) { return (path.length() > 2 && isalpha(path[0]) && path[1] == ':'); } bool ServerConfig::DoInclude(const std::string &file, bool allowexeinc) { std::string confpath; std::string newfile; std::string::size_type pos; confpath = ServerInstance->ConfigFileName; newfile = file; std::replace(newfile.begin(),newfile.end(),'\\','/'); std::replace(confpath.begin(),confpath.end(),'\\','/'); if ((newfile[0] != '/') && (!StartsWithWindowsDriveLetter(newfile))) { if((pos = confpath.rfind("/")) != std::string::npos) { /* Leaves us with just the path */ newfile = confpath.substr(0, pos) + std::string("/") + newfile; } else { errstr << "Couldn't get config path from: " << ServerInstance->ConfigFileName << std::endl; return false; } } FILE* conf = fopen(newfile.c_str(), "r"); bool ret = false; if (conf) { ret = LoadConf(conf, newfile, allowexeinc); fclose(conf); } else errstr << "Couldn't open config file: " << file << std::endl; return ret; } bool ServerConfig::ConfValue(const char* tag, const char* var, int index, char* result, int length, bool allow_linefeeds) { return ConfValue(tag, var, "", index, result, length, allow_linefeeds); } bool ServerConfig::ConfValue(const char* tag, const char* var, const char* default_value, int index, char* result, int length, bool allow_linefeeds) { std::string value; bool r = ConfValue(std::string(tag), std::string(var), std::string(default_value), index, value, allow_linefeeds); strlcpy(result, value.c_str(), length); return r; } bool ServerConfig::ConfValue(const std::string &tag, const std::string &var, int index, std::string &result, bool allow_linefeeds) { return ConfValue(tag, var, "", index, result, allow_linefeeds); } bool ServerConfig::ConfValue(const std::string &tag, const std::string &var, const std::string &default_value, int index, std::string &result, bool allow_linefeeds) { ConfigDataHash::size_type pos = index; if (pos < config_data.count(tag)) { ConfigDataHash::iterator iter = config_data.find(tag); for(int i = 0; i < index; i++) iter++; for(KeyValList::iterator j = iter->second.begin(); j != iter->second.end(); j++) { if(j->first == var) { if ((!allow_linefeeds) && (j->second.find('\n') != std::string::npos)) { ServerInstance->Logs->Log("CONFIG",DEFAULT, "Value of <" + tag + ":" + var+ "> contains a linefeed, and linefeeds in this value are not permitted -- stripped to spaces."); for (std::string::iterator n = j->second.begin(); n != j->second.end(); n++) if (*n == '\n') *n = ' '; } else { result = j->second; return true; } } } if (!default_value.empty()) { result = default_value; return true; } } else if (pos == 0) { if (!default_value.empty()) { result = default_value; return true; } } return false; } bool ServerConfig::ConfValueInteger(const char* tag, const char* var, int index, int &result) { return ConfValueInteger(std::string(tag), std::string(var), "", index, result); } bool ServerConfig::ConfValueInteger(const char* tag, const char* var, const char* default_value, int index, int &result) { return ConfValueInteger(std::string(tag), std::string(var), std::string(default_value), index, result); } bool ServerConfig::ConfValueInteger(const std::string &tag, const std::string &var, int index, int &result) { return ConfValueInteger(tag, var, "", index, result); } bool ServerConfig::ConfValueInteger(const std::string &tag, const std::string &var, const std::string &default_value, int index, int &result) { std::string value; std::istringstream stream; bool r = ConfValue(tag, var, default_value, index, value); stream.str(value); if(!(stream >> result)) return false; else { if (!value.empty()) { if (value.substr(0,2) == "0x") { char* endptr; value.erase(0,2); result = strtol(value.c_str(), &endptr, 16); /* No digits found */ if (endptr == value.c_str()) return false; } else { char denominator = *(value.end() - 1); switch (toupper(denominator)) { case 'K': /* Kilobytes -> bytes */ result = result * 1024; break; case 'M': /* Megabytes -> bytes */ result = result * 1024 * 1024; break; case 'G': /* Gigabytes -> bytes */ result = result * 1024 * 1024 * 1024; break; } } } } return r; } bool ServerConfig::ConfValueBool(const char* tag, const char* var, int index) { return ConfValueBool(std::string(tag), std::string(var), "", index); } bool ServerConfig::ConfValueBool(const char* tag, const char* var, const char* default_value, int index) { return ConfValueBool(std::string(tag), std::string(var), std::string(default_value), index); } bool ServerConfig::ConfValueBool(const std::string &tag, const std::string &var, int index) { return ConfValueBool(tag, var, "", index); } bool ServerConfig::ConfValueBool(const std::string &tag, const std::string &var, const std::string &default_value, int index) { std::string result; if(!ConfValue(tag, var, default_value, index, result)) return false; return ((result == "yes") || (result == "true") || (result == "1")); } int ServerConfig::ConfValueEnum(const char* tag) { return config_data.count(tag); } int ServerConfig::ConfValueEnum(const std::string &tag) { return config_data.count(tag); } int ServerConfig::ConfVarEnum(const char* tag, int index) { return ConfVarEnum(std::string(tag), index); } int ServerConfig::ConfVarEnum(const std::string &tag, int index) { ConfigDataHash::size_type pos = index; if (pos < config_data.count(tag)) { ConfigDataHash::const_iterator iter = config_data.find(tag); for(int i = 0; i < index; i++) iter++; return iter->second.size(); } return 0; } /** Read the contents of a file located by `fname' into a file_cache pointed at by `F'. */ bool ServerConfig::ReadFile(file_cache &F, const char* fname) { if (!fname || !*fname) return false; FILE* file = NULL; char linebuf[MAXBUF]; F.clear(); if ((*fname != '/') && (*fname != '\\') && (!StartsWithWindowsDriveLetter(fname))) { std::string::size_type pos; std::string confpath = ServerInstance->ConfigFileName; std::string newfile = fname; if (((pos = confpath.rfind("/"))) != std::string::npos) newfile = confpath.substr(0, pos) + std::string("/") + fname; else if (((pos = confpath.rfind("\\"))) != std::string::npos) newfile = confpath.substr(0, pos) + std::string("\\") + fname; ServerInstance->Logs->Log("config", DEBUG, "Filename: %s", newfile.c_str()); if (!FileExists(newfile.c_str())) return false; file = fopen(newfile.c_str(), "r"); } else { if (!FileExists(fname)) return false; file = fopen(fname, "r"); } if (file) { while (!feof(file)) { if (fgets(linebuf, sizeof(linebuf), file)) linebuf[strlen(linebuf)-1] = 0; else *linebuf = 0; F.push_back(*linebuf ? linebuf : " "); } fclose(file); } else return false; return true; } bool ServerConfig::FileExists(const char* file) { struct stat sb; if (stat(file, &sb) == -1) return false; if ((sb.st_mode & S_IFDIR) > 0) return false; FILE *input; if ((input = fopen (file, "r")) == NULL) return false; else { fclose(input); return true; } } const char* ServerConfig::CleanFilename(const char* name) { const char* p = name + strlen(name); while ((p != name) && (*p != '/') && (*p != '\\')) p--; return (p != name ? ++p : p); } std::string ServerConfig::GetFullProgDir() { char buffer[PATH_MAX]; #ifdef WINDOWS /* Windows has specific api calls to get the exe path that never fail. * For once, windows has something of use, compared to the POSIX code * for this, this is positively neato. */ if (GetModuleFileName(NULL, buffer, MAX_PATH)) { std::string fullpath = buffer; std::string::size_type n = fullpath.rfind("\\inspircd.exe"); return std::string(fullpath, 0, n); } #else // Get the current working directory if (getcwd(buffer, PATH_MAX)) { std::string remainder = this->argv[0]; /* Does argv[0] start with /? its a full path, use it */ if (remainder[0] == '/') { std::string::size_type n = remainder.rfind("/inspircd"); return std::string(remainder, 0, n); } std::string fullpath = std::string(buffer) + "/" + remainder; std::string::size_type n = fullpath.rfind("/inspircd"); return std::string(fullpath, 0, n); } #endif return "/"; } std::string ServerConfig::GetSID() { return sid; } ValueItem::ValueItem(int value) { std::stringstream n; n << value; v = n.str(); } ValueItem::ValueItem(bool value) { std::stringstream n; n << value; v = n.str(); } void ValueItem::Set(const std::string& value) { v = value; } void ValueItem::Set(int value) { std::stringstream n; n << value; v = n.str(); } int ValueItem::GetInteger() { if (v.empty()) return 0; return atoi(v.c_str()); } const char* ValueItem::GetString() const { return v.c_str(); } bool ValueItem::GetBool() { return (GetInteger() || v == "yes" || v == "true"); } void ConfigReaderThread::Run() { Config = new ServerConfig; Config->Read(); done = true; } void ConfigReaderThread::Finish() { ServerConfig* old = ServerInstance->Config; ServerInstance->Logs->Log("CONFIG",DEBUG,"Switching to new configuration..."); ServerInstance->Logs->CloseLogs(); ServerInstance->Config = this->Config; ServerInstance->Logs->OpenFileLogs(); Config->Apply(old, TheUserUID); if (Config->valid) { /* * Apply the changed configuration from the rehash. * * XXX: The order of these is IMPORTANT, do not reorder them without testing * thoroughly!!! */ ServerInstance->XLines->CheckELines(); ServerInstance->XLines->CheckELines(); ServerInstance->XLines->ApplyLines(); ServerInstance->Res->Rehash(); ServerInstance->ResetMaxBans(); Config->ApplyDisabledCommands(Config->DisabledCommands); User* user = TheUserUID.empty() ? ServerInstance->FindNick(TheUserUID) : NULL; FOREACH_MOD(I_OnRehash, OnRehash(user)); ServerInstance->BuildISupport(); delete old; } else { // whoops, abort! ServerInstance->Logs->CloseLogs(); ServerInstance->Config = old; ServerInstance->Logs->OpenFileLogs(); delete this->Config; } } template<> void ValueContainer::Set(ServerConfig* conf, ValueItem const& item) { strlcpy(conf->*vptr, item.GetString(), MAXBUF); }