/* +------------------------------------+ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * * InspIRCd: (C) 2002-2007 InspIRCd Development Team * See: http://www.inspircd.org/wiki/index.php/Credits * * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ #include "configreader.h" #include #include #include "inspircd.h" #include "xline.h" #include "exitcodes.h" #include "commands/cmd_whowas.h" std::vector old_module_names, new_module_names, added_modules, removed_modules; ServerConfig::ServerConfig(InspIRCd* Instance) : ServerInstance(Instance) { this->ClearStack(); *ServerName = *Network = *ServerDesc = *AdminName = '\0'; *HideWhoisServer = *AdminEmail = *AdminNick = *diepass = *restartpass = *FixedQuit = *HideKillsServer = '\0'; *CustomVersion = *motd = *rules = *PrefixQuit = *DieValue = *DNSServer = '\0'; *UserStats = *ModPath = *MyExecutable = *DisabledCommands = *PID = *SuffixQuit = '\0'; WhoWasGroupSize = WhoWasMaxGroups = WhoWasMaxKeep = 0; log_file = NULL; NoUserDns = forcedebug = OperSpyWhois = nofork = HideBans = HideSplits = UndernetMsgPrefix = false; CycleHosts = writelog = AllowHalfop = true; dns_timeout = DieDelay = 5; MaxTargets = 20; NetBufferSize = 10240; SoftLimit = MAXCLIENTS; MaxConn = SOMAXCONN; MaxWhoResults = 100; debugging = 0; MaxChans = 20; OperMaxChans = 30; LogLevel = DEFAULT; maxbans.clear(); } void ServerConfig::ClearStack() { include_stack.clear(); } Module* ServerConfig::GetIOHook(int port) { std::map::iterator x = IOHookModule.find(port); return (x != IOHookModule.end() ? x->second : NULL); } Module* ServerConfig::GetIOHook(InspSocket* is) { std::map::iterator x = SocketIOHookModule.find(is); return (x != SocketIOHookModule.end() ? x->second : NULL); } bool ServerConfig::AddIOHook(int port, Module* iomod) { if (!GetIOHook(port)) { IOHookModule[port] = iomod; return true; } else { throw ModuleException("Port already hooked by another module"); return false; } } bool ServerConfig::AddIOHook(Module* iomod, InspSocket* is) { if (!GetIOHook(is)) { SocketIOHookModule[is] = iomod; is->IsIOHooked = true; return true; } else { throw ModuleException("InspSocket derived class already hooked by another module"); return false; } } bool ServerConfig::DelIOHook(int port) { std::map::iterator x = IOHookModule.find(port); if (x != IOHookModule.end()) { IOHookModule.erase(x); return true; } return false; } bool ServerConfig::DelIOHook(InspSocket* is) { std::map::iterator x = SocketIOHookModule.find(is); if (x != SocketIOHookModule.end()) { SocketIOHookModule.erase(x); return true; } return false; } 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 = ""; 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(userrec* user) { for (std::vector::iterator line = ServerInstance->Config->isupport.begin(); line != ServerInstance->Config->isupport.end(); line++) user->WriteServ("005 %s %s", user->nick, line->c_str()); } bool ServerConfig::CheckOnce(char* tag, bool bail, userrec* user) { int count = ConfValueEnum(this->config_data, tag); if (count > 1) { throw CoreException("You have more than one <"+std::string(tag)+"> tag, this is not permitted."); return false; } if (count < 1) { throw CoreException("You have not defined a <"+std::string(tag)+"> tag, this is required."); return false; } return true; } bool NoValidation(ServerConfig* conf, const char* tag, const char* value, ValueItem &data) { return true; } bool ValidateMaxTargets(ServerConfig* conf, const char* tag, const char* value, ValueItem &data) { if ((data.GetInteger() < 0) || (data.GetInteger() > 31)) { conf->GetInstance()->Log(DEFAULT,"WARNING: value is greater than 31 or less than 0, set to 20."); data.Set(20); } return true; } bool ValidateSoftLimit(ServerConfig* conf, const char* tag, const char* value, ValueItem &data) { if ((data.GetInteger() < 1) || (data.GetInteger() > MAXCLIENTS)) { conf->GetInstance()->Log(DEFAULT,"WARNING: value is greater than %d or less than 0, set to %d.",MAXCLIENTS,MAXCLIENTS); data.Set(MAXCLIENTS); } return true; } bool ValidateMaxConn(ServerConfig* conf, const char* tag, const char* value, ValueItem &data) { if (data.GetInteger() > SOMAXCONN) conf->GetInstance()->Log(DEFAULT,"WARNING: value may be higher than the system-defined SOMAXCONN value!"); return true; } bool InitializeDisabledCommands(const char* data, InspIRCd* ServerInstance) { std::stringstream dcmds(data); std::string thiscmd; /* Enable everything first */ for (command_table::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) { command_table::iterator cm = ServerInstance->Parser->cmdlist.find(thiscmd); if (cm != ServerInstance->Parser->cmdlist.end()) { cm->second->Disable(true); } } return true; } bool ValidateDnsServer(ServerConfig* conf, const char* tag, const char* value, ValueItem &data) { if (!*(data.GetString())) { // attempt to look up their nameserver from /etc/resolv.conf conf->GetInstance()->Log(DEFAULT,"WARNING: not defined, attempting to find working server in /etc/resolv.conf..."); ifstream resolv("/etc/resolv.conf"); std::string nameserver; 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; conf->GetInstance()->Log(DEFAULT," set to '%s' as first resolver in /etc/resolv.conf.",nameserver.c_str()); } } if (!found_server) { conf->GetInstance()->Log(DEFAULT,"/etc/resolv.conf contains no viable nameserver entries! Defaulting to nameserver '127.0.0.1'!"); data.Set("127.0.0.1"); } } else { conf->GetInstance()->Log(DEFAULT,"/etc/resolv.conf can't be opened! Defaulting to nameserver '127.0.0.1'!"); data.Set("127.0.0.1"); } } return true; } bool ValidateServerName(ServerConfig* conf, const char* tag, const char* value, ValueItem &data) { /* If we already have a servername, and they changed it, we should throw an exception. */ if ((strcasecmp(conf->ServerName, data.GetString())) && (*conf->ServerName)) { throw CoreException("Configuration error: You cannot change your servername at runtime! Please restart your server for this change to be applied."); /* XXX: We don't actually reach this return of course... */ return false; } if (!strchr(data.GetString(),'.')) { conf->GetInstance()->Log(DEFAULT,"WARNING: '%s' is not a fully-qualified domain name. Changed to '%s%c'",data.GetString(),data.GetString(),'.'); std::string moo = std::string(data.GetString()).append("."); data.Set(moo.c_str()); } return true; } bool ValidateNetBufferSize(ServerConfig* conf, const char* tag, const char* value, ValueItem &data) { if ((!data.GetInteger()) || (data.GetInteger() > 65535) || (data.GetInteger() < 1024)) { conf->GetInstance()->Log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240."); data.Set(10240); } return true; } bool ValidateMaxWho(ServerConfig* conf, const char* tag, const char* value, ValueItem &data) { if ((!data.GetInteger()) || (data.GetInteger() > 65535) || (data.GetInteger() < 1)) { conf->GetInstance()->Log(DEFAULT,"No MaxWhoResults specified or size out of range, setting to default of 128."); data.Set(128); } return true; } bool ValidateLogLevel(ServerConfig* conf, const char* tag, const char* value, ValueItem &data) { std::string dbg = data.GetString(); conf->LogLevel = DEFAULT; if (dbg == "debug") conf->LogLevel = DEBUG; else if (dbg == "verbose") conf->LogLevel = VERBOSE; else if (dbg == "default") conf->LogLevel = DEFAULT; else if (dbg == "sparse") conf->LogLevel = SPARSE; else if (dbg == "none") conf->LogLevel = NONE; conf->debugging = (conf->LogLevel == DEBUG); return true; } bool ValidateMotd(ServerConfig* conf, const char* tag, const char* value, ValueItem &data) { conf->ReadFile(conf->MOTD, data.GetString()); return true; } bool ValidateNotEmpty(ServerConfig* conf, const char* tag, const char* value, ValueItem &data) { if (!*data.GetString()) throw CoreException(std::string("The value for ")+tag+" cannot be empty!"); return true; } bool ValidateRules(ServerConfig* conf, const char* tag, const char* value, ValueItem &data) { conf->ReadFile(conf->RULES, data.GetString()); return true; } bool ValidateModeLists(ServerConfig* conf, const char* tag, const char* value, ValueItem &data) { memset(conf->HideModeLists, 0, 256); for (const unsigned char* x = (const unsigned char*)data.GetString(); *x; ++x) conf->HideModeLists[*x] = true; return true; } bool ValidateExemptChanOps(ServerConfig* conf, const char* tag, const char* value, ValueItem &data) { memset(conf->ExemptChanOps, 0, 256); for (const unsigned char* x = (const unsigned char*)data.GetString(); *x; ++x) conf->ExemptChanOps[*x] = true; return true; } bool ValidateWhoWas(ServerConfig* conf, const char* tag, const char* value, ValueItem &data) { conf->WhoWasMaxKeep = conf->GetInstance()->Duration(data.GetString()); if (conf->WhoWasGroupSize < 0) conf->WhoWasGroupSize = 0; if (conf->WhoWasMaxGroups < 0) conf->WhoWasMaxGroups = 0; if (conf->WhoWasMaxKeep < 3600) { conf->WhoWasMaxKeep = 3600; conf->GetInstance()->Log(DEFAULT,"WARNING: value less than 3600, setting to default 3600"); } command_t* whowas_command = conf->GetInstance()->Parser->GetHandler("WHOWAS"); if (whowas_command) { std::deque params; whowas_command->HandleInternal(WHOWAS_PRUNE, params); } return true; } /* Callback called before processing the first tag */ bool InitConnect(ServerConfig* conf, const char* tag) { conf->GetInstance()->Log(DEFAULT,"Reading connect classes..."); conf->Classes.clear(); return true; } /* Callback called to process a single tag */ bool DoConnect(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types) { ConnectClass c; const char* allow = values[0].GetString(); /* Yeah, there are a lot of values. Live with it. */ const char* deny = values[1].GetString(); const char* password = values[2].GetString(); int timeout = values[3].GetInteger(); int pingfreq = values[4].GetInteger(); int flood = values[5].GetInteger(); int threshold = values[6].GetInteger(); int sendq = values[7].GetInteger(); int recvq = values[8].GetInteger(); int localmax = values[9].GetInteger(); int globalmax = values[10].GetInteger(); if (*allow) { ConnectClass c(timeout, flood, allow, pingfreq, password, threshold, sendq, recvq, localmax, globalmax); conf->Classes.push_back(c); } else { ConnectClass c(deny); conf->Classes.push_back(c); } return true; } /* Callback called when there are no more tags */ bool DoneConnect(ServerConfig* conf, const char* tag) { return true; } /* Callback called before processing the first tag */ bool InitULine(ServerConfig* conf, const char* tag) { conf->ulines.clear(); return true; } /* Callback called to process a single tag */ bool DoULine(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types) { const char* server = values[0].GetString(); const bool silent = values[1].GetBool(); conf->ulines[server] = silent; return true; } /* Callback called when there are no more tags */ bool DoneULine(ServerConfig* conf, const char* tag) { return true; } /* Callback called before processing the first tag */ bool InitModule(ServerConfig* conf, const char* tag) { old_module_names.clear(); new_module_names.clear(); added_modules.clear(); removed_modules.clear(); for (std::vector::iterator t = conf->module_names.begin(); t != conf->module_names.end(); t++) { old_module_names.push_back(*t); } return true; } /* Callback called to process a single tag */ bool DoModule(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types) { const char* modname = values[0].GetString(); new_module_names.push_back(modname); return true; } /* Callback called when there are no more tags */ bool DoneModule(ServerConfig* conf, const char* tag) { // now create a list of new modules that are due to be loaded // and a seperate list of modules which are due to be unloaded for (std::vector::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++) { bool added = true; for (std::vector::iterator old = old_module_names.begin(); old != old_module_names.end(); old++) { if (*old == *_new) added = false; } if (added) added_modules.push_back(*_new); } for (std::vector::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++) { bool removed = true; for (std::vector::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++) { if (*newm == *oldm) removed = false; } if (removed) removed_modules.push_back(*oldm); } return true; } /* Callback called before processing the first tag */ bool InitMaxBans(ServerConfig* conf, const char* tag) { conf->maxbans.clear(); return true; } /* Callback called to process a single tag */ bool DoMaxBans(ServerConfig* conf, const char* tag, char** entries, ValueList &values, int* types) { const char* channel = values[0].GetString(); int limit = values[1].GetInteger(); conf->maxbans[channel] = limit; return true; } /* Callback called when there are no more tags. */ bool DoneMaxBans(ServerConfig* conf, const char* tag) { return true; } void ServerConfig::ReportConfigError(const std::string &errormessage, bool bail, userrec* user) { ServerInstance->Log(DEFAULT, "There were errors in your configuration file: %s", errormessage.c_str()); if (bail) { /* Unneeded because of the ServerInstance->Log() aboive? */ printf("There were errors in your configuration:\n%s\n\n",errormessage.c_str()); InspIRCd::Exit(EXIT_STATUS_CONFIG); } else { std::string errors = errormessage; std::string::size_type start; unsigned int prefixlen; start = 0; /* ":ServerInstance->Config->ServerName NOTICE user->nick :" */ if (user) { prefixlen = strlen(this->ServerName) + strlen(user->nick) + 11; user->WriteServ("NOTICE %s :There were errors in the configuration file:",user->nick); while (start < errors.length()) { user->WriteServ("NOTICE %s :%s",user->nick, errors.substr(start, 510 - prefixlen).c_str()); start += 510 - prefixlen; } } else { ServerInstance->WriteOpers("There were errors in the configuration file:"); while (start < errors.length()) { ServerInstance->WriteOpers(errors.substr(start, 360).c_str()); start += 360; } } return; } } void ServerConfig::Read(bool bail, userrec* user) { static char debug[MAXBUF]; /* Temporary buffer for debugging value */ static char maxkeep[MAXBUF]; /* Temporary buffer for WhoWasMaxKeep value */ static char hidemodes[MAXBUF]; /* Modes to not allow listing from users below halfop */ static char exemptchanops[MAXBUF]; /* Exempt channel ops from these modes */ int rem = 0, add = 0; /* Number of modules added, number of modules removed */ std::ostringstream errstr; /* String stream containing the error output */ /* These tags MUST occur and must ONLY occur once in the config file */ static char* Once[] = { "server", "admin", "files", "power", "options", NULL }; /* These tags can occur ONCE or not at all */ InitialConfig Values[] = { {"options", "softlimit", MAXCLIENTS_S, new ValueContainerUInt (&this->SoftLimit), DT_INTEGER, ValidateSoftLimit}, {"options", "somaxconn", SOMAXCONN_S, new ValueContainerInt (&this->MaxConn), DT_INTEGER, ValidateMaxConn}, {"server", "name", "", new ValueContainerChar (this->ServerName), DT_CHARPTR, ValidateServerName}, {"server", "description", "Configure Me", new ValueContainerChar (this->ServerDesc), DT_CHARPTR, NoValidation}, {"server", "network", "Network", new ValueContainerChar (this->Network), DT_CHARPTR, NoValidation}, {"admin", "name", "", new ValueContainerChar (this->AdminName), DT_CHARPTR, NoValidation}, {"admin", "email", "Mis@configu.red", new ValueContainerChar (this->AdminEmail), DT_CHARPTR, NoValidation}, {"admin", "nick", "Misconfigured", new ValueContainerChar (this->AdminNick), DT_CHARPTR, NoValidation}, {"files", "motd", "", new ValueContainerChar (this->motd), DT_CHARPTR, ValidateMotd}, {"files", "rules", "", new ValueContainerChar (this->rules), DT_CHARPTR, ValidateRules}, {"power", "diepass", "", new ValueContainerChar (this->diepass), DT_CHARPTR, ValidateNotEmpty}, {"power", "pause", "", new ValueContainerInt (&this->DieDelay), DT_INTEGER, NoValidation}, {"power", "restartpass", "", new ValueContainerChar (this->restartpass), DT_CHARPTR, ValidateNotEmpty}, {"options", "prefixquit", "", new ValueContainerChar (this->PrefixQuit), DT_CHARPTR, NoValidation}, {"options", "suffixquit", "", new ValueContainerChar (this->SuffixQuit), DT_CHARPTR, NoValidation}, {"options", "fixedquit", "", new ValueContainerChar (this->FixedQuit), DT_CHARPTR, NoValidation}, {"options", "loglevel", "default", new ValueContainerChar (debug), DT_CHARPTR, ValidateLogLevel}, {"options", "netbuffersize","10240", new ValueContainerInt (&this->NetBufferSize), DT_INTEGER, ValidateNetBufferSize}, {"options", "maxwho", "128", new ValueContainerInt (&this->MaxWhoResults), DT_INTEGER, ValidateMaxWho}, {"options", "allowhalfop", "0", new ValueContainerBool (&this->AllowHalfop), DT_BOOLEAN, NoValidation}, {"dns", "server", "", new ValueContainerChar (this->DNSServer), DT_CHARPTR, ValidateDnsServer}, {"dns", "timeout", "5", new ValueContainerInt (&this->dns_timeout), DT_INTEGER, NoValidation}, {"options", "moduledir", MOD_PATH, new ValueContainerChar (this->ModPath), DT_CHARPTR, NoValidation}, {"disabled", "commands", "", new ValueContainerChar (this->DisabledCommands), DT_CHARPTR, NoValidation}, {"options", "userstats", "", new ValueContainerChar (this->UserStats), DT_CHARPTR, NoValidation}, {"options", "customversion","", new ValueContainerChar (this->CustomVersion), DT_CHARPTR, NoValidation}, {"options", "hidesplits", "0", new ValueContainerBool (&this->HideSplits), DT_BOOLEAN, NoValidation}, {"options", "hidebans", "0", new ValueContainerBool (&this->HideBans), DT_BOOLEAN, NoValidation}, {"options", "hidewhois", "", new ValueContainerChar (this->HideWhoisServer), DT_CHARPTR, NoValidation}, {"options", "hidekills", "", new ValueContainerChar (this->HideKillsServer), DT_CHARPTR, NoValidation}, {"options", "operspywhois", "0", new ValueContainerBool (&this->OperSpyWhois), DT_BOOLEAN, NoValidation}, {"options", "nouserdns", "0", new ValueContainerBool (&this->NoUserDns), DT_BOOLEAN, NoValidation}, {"options", "syntaxhints", "0", new ValueContainerBool (&this->SyntaxHints), DT_BOOLEAN, NoValidation}, {"options", "cyclehosts", "0", new ValueContainerBool (&this->CycleHosts), DT_BOOLEAN, NoValidation}, {"options", "ircumsgprefix","0", new ValueContainerBool (&this->UndernetMsgPrefix), DT_BOOLEAN, NoValidation}, {"options", "announceinvites", "1", new ValueContainerBool (&this->AnnounceInvites), DT_BOOLEAN, NoValidation}, {"options", "hostintopic", "1", new ValueContainerBool (&this->FullHostInTopic), DT_BOOLEAN, NoValidation}, {"options", "hidemodes", "", new ValueContainerChar (hidemodes), DT_CHARPTR, ValidateModeLists}, {"options", "exemptchanops","", new ValueContainerChar (exemptchanops), DT_CHARPTR, ValidateExemptChanOps}, {"pid", "file", "", new ValueContainerChar (this->PID), DT_CHARPTR, NoValidation}, {"whowas", "groupsize", "10", new ValueContainerInt (&this->WhoWasGroupSize), DT_INTEGER, NoValidation}, {"whowas", "maxgroups", "10240", new ValueContainerInt (&this->WhoWasMaxGroups), DT_INTEGER, NoValidation}, {"whowas", "maxkeep", "3600", new ValueContainerChar (maxkeep), DT_CHARPTR, ValidateWhoWas}, {"die", "value", "", new ValueContainerChar (this->DieValue), DT_CHARPTR, NoValidation}, {"channels", "users", "20", new ValueContainerUInt (&this->MaxChans), DT_INTEGER, NoValidation}, {"channels", "opers", "60", new ValueContainerUInt (&this->OperMaxChans), DT_INTEGER, NoValidation}, {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", "flood", "threshold", "sendq", "recvq", "localmax", "globalmax", "port", NULL}, {"", "", "", "", "120", "", "", "", "", "3", "3", "0", NULL}, {DT_CHARPTR, DT_CHARPTR, DT_CHARPTR, DT_INTEGER, DT_INTEGER, DT_INTEGER, DT_INTEGER, DT_INTEGER, DT_INTEGER, DT_INTEGER, DT_INTEGER, DT_INTEGER}, InitConnect, DoConnect, DoneConnect}, {"uline", {"server", "silent", NULL}, {"", "0", NULL}, {DT_CHARPTR, DT_BOOLEAN}, InitULine,DoULine,DoneULine}, {"banlist", {"chan", "limit", NULL}, {"", "", NULL}, {DT_CHARPTR, DT_INTEGER}, InitMaxBans, DoMaxBans, DoneMaxBans}, {"module", {"name", NULL}, {"", NULL}, {DT_CHARPTR}, InitModule, DoModule, DoneModule}, {"badip", {"reason", "ipmask", NULL}, {"No reason", "", NULL}, {DT_CHARPTR, DT_CHARPTR}, InitXLine, DoZLine, DoneZLine}, {"badnick", {"reason", "nick", NULL}, {"No reason", "", NULL}, {DT_CHARPTR, DT_CHARPTR}, InitXLine, DoQLine, DoneQLine}, {"badhost", {"reason", "host", NULL}, {"No reason", "", NULL}, {DT_CHARPTR, DT_CHARPTR}, InitXLine, DoKLine, DoneKLine}, {"exception", {"reason", "host", NULL}, {"No reason", "", NULL}, {DT_CHARPTR, DT_CHARPTR}, InitXLine, DoELine, DoneELine}, {"type", {"name", "classes", NULL}, {"", "", NULL}, {DT_CHARPTR, DT_CHARPTR}, InitTypes, DoType, DoneClassesAndTypes}, {"class", {"name", "commands", NULL}, {"", "", NULL}, {DT_CHARPTR, DT_CHARPTR}, InitClasses, DoClass, DoneClassesAndTypes}, {NULL} }; include_stack.clear(); /* Load and parse the config file, if there are any errors then explode */ /* Make a copy here so if it fails then we can carry on running with an unaffected config */ ConfigDataHash newconfig; if (this->LoadConf(newconfig, ServerInstance->ConfigFileName, errstr)) { /* If we succeeded, set the ircd config to the new one */ this->config_data = newconfig; } else { ReportConfigError(errstr.str(), bail, user); return; } /* 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; Once[Index]; Index++) if (!CheckOnce(Once[Index], bail, user)) return; /* Read the values of all the tags which occur once or not at all, and call their callbacks. */ for (int Index = 0; Values[Index].tag; Index++) { char item[MAXBUF]; int dt = Values[Index].datatype; bool allow_newlines = ((dt & DT_ALLOW_NEWLINE) > 0); dt &= ~DT_ALLOW_NEWLINE; ConfValue(this->config_data, Values[Index].tag, Values[Index].value, Values[Index].default_value, 0, item, MAXBUF, allow_newlines); ValueItem vi(item); if (!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 (Values[Index].datatype) { case DT_CHARPTR: { ValueContainerChar* vcc = (ValueContainerChar*)Values[Index].val; /* Make sure we also copy the null terminator */ vcc->Set(vi.GetString(), strlen(vi.GetString()) + 1); } break; case DT_INTEGER: { int val = vi.GetInteger(); ValueContainerInt* vci = (ValueContainerInt*)Values[Index].val; vci->Set(&val, sizeof(int)); } break; case DT_BOOLEAN: { bool val = vi.GetBool(); ValueContainerBool* vcb = (ValueContainerBool*)Values[Index].val; vcb->Set(&val, sizeof(bool)); } break; default: /* You don't want to know what happens if someones bad code sends us here. */ break; } /* We're done with this now */ delete Values[Index].val; } /* 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; MultiValues[Index].tag; Index++) { MultiValues[Index].init_function(this, MultiValues[Index].tag); int number_of_tags = ConfValueEnum(this->config_data, MultiValues[Index].tag); for (int tagnum = 0; tagnum < number_of_tags; tagnum++) { ValueList vl; for (int valuenum = 0; MultiValues[Index].items[valuenum]; valuenum++) { int dt = MultiValues[Index].datatype[valuenum]; bool allow_newlines = ((dt & DT_ALLOW_NEWLINE) > 0); dt &= ~DT_ALLOW_NEWLINE; switch (dt) { case DT_CHARPTR: { char item[MAXBUF]; if (ConfValue(this->config_data, 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(this->config_data, 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(this->config_data, MultiValues[Index].tag, MultiValues[Index].items[valuenum], MultiValues[Index].items_default[valuenum], tagnum); vl.push_back(ValueItem(item)); } break; default: /* Someone was smoking craq if we got here, and we're all gonna die. */ break; } } MultiValues[Index].validation_function(this, MultiValues[Index].tag, (char**)MultiValues[Index].items, vl, MultiValues[Index].datatype); } MultiValues[Index].finish_function(this, MultiValues[Index].tag); } } catch (CoreException &ce) { ReportConfigError(ce.GetReason(), bail, user); return; } // write once here, to try it out and make sure its ok ServerInstance->WritePID(this->PID); ServerInstance->Log(DEFAULT,"Done reading configuration file."); /* If we're rehashing, let's load any new modules, and unload old ones */ if (!bail) { int found_ports = 0; FailedPortList pl; ServerInstance->BindPorts(false, found_ports, pl); if (pl.size()) { user->WriteServ("NOTICE %s :*** Not all your client ports could be bound.", user->nick); user->WriteServ("NOTICE %s :*** The following port(s) failed to bind:", user->nick); int j = 1; for (FailedPortList::iterator i = pl.begin(); i != pl.end(); i++, j++) { user->WriteServ("NOTICE %s :*** %d. IP: %s Port: %lu", user->nick, j, i->first.empty() ? "" : i->first.c_str(), (unsigned long)i->second); } } if (!removed_modules.empty()) { for (std::vector::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++) { if (ServerInstance->UnloadModule(removing->c_str())) { ServerInstance->WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str()); if (user) user->WriteServ("973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str()); rem++; } else { if (user) user->WriteServ("972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ServerInstance->ModuleError()); } } } if (!added_modules.empty()) { for (std::vector::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++) { if (ServerInstance->LoadModule(adding->c_str())) { ServerInstance->WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str()); if (user) user->WriteServ("975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str()); add++; } else { if (user) user->WriteServ("974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ServerInstance->ModuleError()); } } } ServerInstance->Log(DEFAULT,"Successfully unloaded %lu of %lu modules and loaded %lu of %lu modules.",(unsigned long)rem,(unsigned long)removed_modules.size(),(unsigned long)add,(unsigned long)added_modules.size()); } if (user) user->WriteServ("NOTICE %s :*** Successfully rehashed server.", user->nick); else ServerInstance->WriteOpers("*** Successfully rehashed server."); } bool ServerConfig::LoadConf(ConfigDataHash &target, const char* filename, std::ostringstream &errorstream) { std::ifstream conf(filename); std::string line; char ch; long linenumber; bool in_tag; bool in_quote; bool in_comment; linenumber = 1; in_tag = false; in_quote = false; in_comment = false; /* Check if the file open failed first */ if (!conf) { errorstream << "LoadConf: Couldn't open config file: " << filename << std::endl; return false; } /* Fix the chmod of the file to restrict it to the current user and group */ chmod(filename,0600); for (unsigned int t = 0; t < include_stack.size(); t++) { if (std::string(filename) == include_stack[t]) { errorstream << "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(conf.get(ch)) { /* * 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; /*if(((ch == '\n') || (ch == '\r')) && in_quote) { errorstream << "Got a newline within a quoted section, this is probably a typo: " << filename << ":" << linenumber << std::endl; return false; }*/ 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 (conf.get(real_character)) { if (real_character == 'n') real_character = '\n'; line += real_character; continue; } else { errorstream << "End of file after a \\, what did you want to escape?: " << filename << ":" << linenumber << std::endl; return false; } } if (ch != '\r') line += ch; if(ch == '<') { if(in_tag) { if(!in_quote) { errorstream << "Got another opening < when the first one wasn't closed: " << filename << ":" << linenumber << std::endl; return false; } } else { if(in_quote) { errorstream << "We're in a quote but outside a tag, interesting. " << filename << ":" << linenumber << std::endl; return false; } else { // errorstream << "Opening new config tag on line " << linenumber << std::endl; in_tag = true; } } } else if(ch == '"') { if(in_tag) { if(in_quote) { // errorstream << "Closing quote in config tag on line " << linenumber << std::endl; in_quote = false; } else { // errorstream << "Opening quote in config tag on line " << linenumber << std::endl; in_quote = true; } } else { if(in_quote) { errorstream << "Found a (closing) \" outside a tag: " << filename << ":" << linenumber << std::endl; } else { errorstream << "Found a (opening) \" outside a tag: " << filename << ":" << linenumber << std::endl; } } } else if(ch == '>') { if(!in_quote) { if(in_tag) { // errorstream << "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 */ if(!this->ParseLine(target, line, linenumber, errorstream)) return false; line.clear(); } else { errorstream << "Got a closing > when we weren't inside a tag: " << filename << ":" << linenumber << std::endl; return false; } } } } return true; } bool ServerConfig::LoadConf(ConfigDataHash &target, const std::string &filename, std::ostringstream &errorstream) { return this->LoadConf(target, filename.c_str(), errorstream); } bool ServerConfig::ParseLine(ConfigDataHash &target, std::string &line, long linenumber, std::ostringstream &errorstream) { std::string tagname; std::string current_key; std::string current_value; KeyValList results; bool got_name; bool got_key; bool in_quote; got_name = got_key = in_quote = false; //std::cout << "ParseLine(data, '" << line << "', " << linenumber << ", stream)" << std::endl; 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 != '<') { tagname += *c; } } 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 != '=') { if (*c != ' ') { current_key += *c; } } 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 == '\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 quotes, we have the 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(target, current_value, errorstream)) return false; } current_key.clear(); current_value.clear(); } } else { if(in_quote) { current_value += *c; } } } } } /* Finished parsing the tag, add it to the config hash */ target.insert(std::pair (tagname, results)); return true; } bool ServerConfig::DoInclude(ConfigDataHash &target, const std::string &file, std::ostringstream &errorstream) { std::string confpath; std::string newfile; std::string::size_type pos; confpath = ServerInstance->ConfigFileName; newfile = file; for (std::string::iterator c = newfile.begin(); c != newfile.end(); c++) { if (*c == '\\') { *c = '/'; } } if (file[0] != '/') { if((pos = confpath.rfind("/")) != std::string::npos) { /* Leaves us with just the path */ newfile = confpath.substr(0, pos) + std::string("/") + newfile; } else { errorstream << "Couldn't get config path from: " << confpath << std::endl; return false; } } return LoadConf(target, newfile, errorstream); } bool ServerConfig::ConfValue(ConfigDataHash &target, const char* tag, const char* var, int index, char* result, int length, bool allow_linefeeds) { return ConfValue(target, tag, var, "", index, result, length, allow_linefeeds); } bool ServerConfig::ConfValue(ConfigDataHash &target, 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(target, 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(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, std::string &result, bool allow_linefeeds) { return ConfValue(target, tag, var, "", index, result, allow_linefeeds); } bool ServerConfig::ConfValue(ConfigDataHash &target, 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 >= 0) && (pos < target.count(tag))) { ConfigDataHash::iterator iter = target.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->Log(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(ConfigDataHash &target, const char* tag, const char* var, int index, int &result) { return ConfValueInteger(target, std::string(tag), std::string(var), "", index, result); } bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index, int &result) { return ConfValueInteger(target, std::string(tag), std::string(var), std::string(default_value), index, result); } bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, int &result) { return ConfValueInteger(target, tag, var, "", index, result); } bool ServerConfig::ConfValueInteger(ConfigDataHash &target, 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(target, 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(ConfigDataHash &target, const char* tag, const char* var, int index) { return ConfValueBool(target, std::string(tag), std::string(var), "", index); } bool ServerConfig::ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, const char* default_value, int index) { return ConfValueBool(target, std::string(tag), std::string(var), std::string(default_value), index); } bool ServerConfig::ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, int index) { return ConfValueBool(target, tag, var, "", index); } bool ServerConfig::ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, const std::string &default_value, int index) { std::string result; if(!ConfValue(target, tag, var, default_value, index, result)) return false; return ((result == "yes") || (result == "true") || (result == "1")); } int ServerConfig::ConfValueEnum(ConfigDataHash &target, const char* tag) { return target.count(tag); } int ServerConfig::ConfValueEnum(ConfigDataHash &target, const std::string &tag) { return target.count(tag); } int ServerConfig::ConfVarEnum(ConfigDataHash &target, const char* tag, int index) { return ConfVarEnum(target, std::string(tag), index); } int ServerConfig::ConfVarEnum(ConfigDataHash &target, const std::string &tag, int index) { ConfigDataHash::size_type pos = index; if((pos >= 0) && (pos < target.count(tag))) { ConfigDataHash::const_iterator iter = target.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 != '/') { std::string::size_type pos; std::string confpath = ServerInstance->ConfigFileName; if((pos = confpath.rfind("/")) != std::string::npos) { /* Leaves us with just the path */ std::string newfile = confpath.substr(0, pos) + std::string("/") + fname; 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; if (!feof(file)) { 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; } } char* ServerConfig::CleanFilename(char* name) { char* p = name + strlen(name); while ((p != name) && (*p != '/')) p--; return (p != name ? ++p : p); } bool ServerConfig::DirValid(const char* dirandfile) { #ifdef WINDOWS return true; #endif char work[1024]; char buffer[1024]; char otherdir[1024]; int p; strlcpy(work, dirandfile, 1024); p = strlen(work); // we just want the dir while (*work) { if (work[p] == '/') { work[p] = '\0'; break; } work[p--] = '\0'; } // Get the current working directory if (getcwd(buffer, 1024 ) == NULL ) return false; if (chdir(work) == -1) return false; if (getcwd(otherdir, 1024 ) == NULL ) return false; if (chdir(buffer) == -1) return false; size_t t = strlen(work); if (strlen(otherdir) >= t) { otherdir[t] = '\0'; if (!strcmp(otherdir,work)) { return true; } return false; } else { return false; } } std::string ServerConfig::GetFullProgDir(char** argv, int argc) { char work[1024]; char buffer[1024]; char otherdir[1024]; int p; strlcpy(work,argv[0],1024); p = strlen(work); // we just want the dir while (*work) { if (work[p] == '/') { work[p] = '\0'; break; } work[p--] = '\0'; } // Get the current working directory if (getcwd(buffer, 1024) == NULL) return ""; if (chdir(work) == -1) return ""; if (getcwd(otherdir, 1024) == NULL) return ""; if (chdir(buffer) == -1) return ""; return otherdir; } InspIRCd* ServerConfig::GetInstance() { return ServerInstance; } ValueItem::ValueItem(int value) { std::stringstream n; n << value; v = n.str(); } ValueItem::ValueItem(bool value) { std::stringstream n; n << value; v = n.str(); } ValueItem::ValueItem(char* value) { v = value; } void ValueItem::Set(char* value) { v = value; } void ValueItem::Set(const char* 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()); } char* ValueItem::GetString() { return (char*)v.c_str(); } bool ValueItem::GetBool() { return (GetInteger() || v == "yes" || v == "true"); }