X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fserver.cpp;h=dbc51e37c3ee971d5c502c58c4f98ced4e33618b;hb=b3449b8763139602efc568f46631299476d5979f;hp=0f931da075ec85aae28d5ff043450a5a79bc37e8;hpb=0bb707c10c04621f9eb8fdf5211bec8156dbca11;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/server.cpp b/src/server.cpp index 0f931da07..dbc51e37c 100644 --- a/src/server.cpp +++ b/src/server.cpp @@ -1,132 +1,251 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd: (C) 2002-2007 InspIRCd Development Team - * See: http://www.inspircd.org/wiki/index.php/Credits + * Copyright (C) 2019 nia + * Copyright (C) 2013-2014, 2016 Attila Molnar + * Copyright (C) 2013, 2016-2017, 2020 Sadie Powell + * Copyright (C) 2013 Adam + * Copyright (C) 2012 Robby + * Copyright (C) 2012 ChrisTX + * Copyright (C) 2009 Uli Schlachter + * Copyright (C) 2009 Daniel De Graaf + * Copyright (C) 2008, 2010 Craig Edwards + * Copyright (C) 2007-2008 Robin Burchell + * Copyright (C) 2007 Dennis Friis * - * This program is free but copyrighted software; see - * the file COPYING for details. + * This file is part of InspIRCd. InspIRCd is free software: you can + * redistribute it and/or modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation, version 2. * - * --------------------------------------------------- + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . */ -#include -#include "exitcodes.h" -#include "inspircd.h" +#include "inspircd.h" +#include "exitcodes.h" +#include void InspIRCd::SignalHandler(int signal) { - switch (signal) +#ifdef _WIN32 + if (signal == SIGTERM) +#else + if (signal == SIGHUP) { - case SIGHUP: - Rehash(); - break; - case SIGTERM: - Exit(signal); - break; + ServerInstance->SNO->WriteGlobalSno('a', "Rehashing due to SIGHUP"); + Rehash(); + } + else if (signal == SIGTERM) +#endif + { + Exit(EXIT_STATUS_SIGTERM); } } void InspIRCd::Exit(int status) { -#ifdef WINDOWS - CloseIPC(); +#ifdef _WIN32 + SetServiceStopped(status); #endif - if (this) - { - this->SendError("Exiting with status " + ConvToStr(status) + " (" + std::string(ExitCodes[status]) + ")"); - this->Cleanup(); - } - exit (status); + this->Cleanup(); + ServerInstance = NULL; + delete this; + exit (status); } -void InspIRCd::Rehash() +void InspIRCd::Rehash(const std::string& uuid) { - this->WriteOpers("*** Rehashing config file %s due to SIGHUP",ServerConfig::CleanFilename(this->ConfigFileName)); - this->CloseLog(); - this->OpenLog(this->Config->argv, this->Config->argc); - this->RehashUsersAndChans(); - FOREACH_MOD_I(this, I_OnGarbageCollect, OnGarbageCollect()); - this->Config->Read(false,NULL); - this->ResetMaxBans(); - this->Res->Rehash(); - FOREACH_MOD_I(this,I_OnRehash,OnRehash(NULL,"")); - this->BuildISupport(); + if (!ServerInstance->ConfigThread) + { + ServerInstance->ConfigThread = new ConfigReaderThread(uuid); + ServerInstance->Threads.Start(ServerInstance->ConfigThread); + } } -void InspIRCd::RehashServer() +std::string InspIRCd::GetVersionString(bool getFullVersion) { - this->WriteOpers("*** Rehashing config file"); - this->RehashUsersAndChans(); - this->Config->Read(false,NULL); - this->ResetMaxBans(); - this->Res->Rehash(); + if (getFullVersion) + return INSPIRCD_VERSION ". " + Config->ServerName + " :[" + Config->sid + "] " + Config->CustomVersion; + return INSPIRCD_BRANCH ". " + Config->GetServerName() + " :" + Config->CustomVersion; } -std::string InspIRCd::GetVersionString() +std::string UIDGenerator::GenerateSID(const std::string& servername, const std::string& serverdesc) { - char versiondata[MAXBUF]; - char dnsengine[] = "singlethread-object"; + unsigned int sid = 0; - if (*Config->CustomVersion) + for (std::string::const_iterator i = servername.begin(); i != servername.end(); ++i) + sid = 5 * sid + *i; + for (std::string::const_iterator i = serverdesc.begin(); i != serverdesc.end(); ++i) + sid = 5 * sid + *i; + + std::string sidstr = ConvToStr(sid % 1000); + sidstr.insert(0, 3 - sidstr.length(), '0'); + return sidstr; +} + +void UIDGenerator::IncrementUID(unsigned int pos) +{ + /* + * Okay. The rules for generating a UID go like this... + * -- > ABCDEFGHIJKLMNOPQRSTUVWXYZ --> 012345679 --> WRAP + * That is, we start at A. When we reach Z, we go to 0. At 9, we go to + * A again, in an iterative fashion.. so.. + * AAA9 -> AABA, and so on. -- w00t + */ + + // If we hit Z, wrap around to 0. + if (current_uid[pos] == 'Z') + { + current_uid[pos] = '0'; + } + else if (current_uid[pos] == '9') { - snprintf(versiondata,MAXBUF,"%s %s :%s",VERSION,Config->ServerName,Config->CustomVersion); + /* + * Or, if we hit 9, wrap around to pos = 'A' and (pos - 1)++, + * e.g. A9 -> BA -> BB .. + */ + current_uid[pos] = 'A'; + if (pos == 3) + { + // At pos 3, if we hit '9', we've run out of available UIDs, and reset to AAA..AAA. + return; + } + this->IncrementUID(pos - 1); } else { - snprintf(versiondata,MAXBUF,"%s %s :%s [FLAGS=%s,%s,%s]",VERSION,Config->ServerName,SYSTEM,REVISION,SE->GetName().c_str(),dnsengine); + // Anything else, nobody gives a shit. Just increment. + current_uid[pos]++; } - return versiondata; } -void InspIRCd::BuildISupport() +void UIDGenerator::init(const std::string& sid) { - // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it... - std::stringstream v; - v << "WALLCHOPS WALLVOICES MODES=" << MAXMODES-1 << " CHANTYPES=# PREFIX=" << this->Modes->BuildPrefixes() << " MAP MAXCHANNELS=" << Config->MaxChans << " MAXBANS=60 VBANLIST NICKLEN=" << NICKMAX-1; - v << " CASEMAPPING=rfc1459 STATUSMSG=@%+ CHARSET=ascii TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=" << Config->MaxTargets << " AWAYLEN="; - v << MAXAWAY << " CHANMODES=" << this->Modes->ChanModes() << " FNC NETWORK=" << Config->Network << " MAXPARA=32 ELIST=MU"; - Config->data005 = v.str(); - FOREACH_MOD_I(this,I_On005Numeric,On005Numeric(Config->data005)); - Config->Update005(); + /* + * Copy SID into the first three digits, 9's to the rest, null term at the end + * Why 9? Well, we increment before we find, otherwise we have an unnecessary copy, and I want UID to start at AAA..AA + * and not AA..AB. So by initialising to 99999, we force it to rollover to AAAAA on the first IncrementUID call. + * Kind of silly, but I like how it looks. + * -- w + */ + + current_uid.resize(UUID_LENGTH, '9'); + current_uid[0] = sid[0]; + current_uid[1] = sid[1]; + current_uid[2] = sid[2]; } -std::string InspIRCd::GetRevision() +/* + * Retrieve the next valid UUID that is free for this server. + */ +std::string UIDGenerator::GetUID() { - return REVISION; -} + while (1) + { + // Add one to the last UID + this->IncrementUID(UUID_LENGTH - 1); -void InspIRCd::AddServerName(const std::string &servername) -{ - servernamelist::iterator itr = servernames.begin(); - for(; itr != servernames.end(); ++itr) - if(**itr == servername) - return; + if (!ServerInstance->FindUUID(current_uid)) + break; + + /* + * It's in use. We need to try the loop again. + */ + } - string * ns = new string(servername); - servernames.push_back(ns); + return current_uid; } -const char* InspIRCd::FindServerNamePtr(const std::string &servername) +void ISupportManager::AppendValue(std::string& buffer, const std::string& value) { - servernamelist::iterator itr = servernames.begin(); - for(; itr != servernames.end(); ++itr) - if(**itr == servername) - return (*itr)->c_str(); - - servernames.push_back(new string(servername)); - itr = --servernames.end(); - return (*itr)->c_str(); + // If this token has no value then we have nothing to do. + if (value.empty()) + return; + + // This function implements value escaping according to the rules of the ISUPPORT draft: + // https://tools.ietf.org/html/draft-brocklesby-irc-isupport-03 + buffer.push_back('='); + for (std::string::const_iterator iter = value.begin(); iter != value.end(); ++iter) + { + // The value must be escaped if: + // (1) It is a banned character in an IRC parameter (NUL, LF, CR, SPACE). + // (2) It has special meaning within an ISUPPORT token (EQUALS, BACKSLASH). + if (*iter == '\0' || *iter == '\n' || *iter == '\r' || *iter == ' ' || *iter == '=' || *iter == '\\') + buffer.append(InspIRCd::Format("\\x%X", *iter)); + else + buffer.push_back(*iter); + } } -bool InspIRCd::FindServerName(const std::string &servername) +void ISupportManager::Build() { - servernamelist::iterator itr = servernames.begin(); - for(; itr != servernames.end(); ++itr) - if(**itr == servername) - return true; - return false; + /** + * This is currently the neatest way we can build the initial ISUPPORT map. In + * the future we can use an initializer list here. + */ + std::map tokens; + + tokens["AWAYLEN"] = ConvToStr(ServerInstance->Config->Limits.MaxAway); + tokens["CASEMAPPING"] = ServerInstance->Config->CaseMapping; + tokens["CHANLIMIT"] = InspIRCd::Format("#:%u", ServerInstance->Config->MaxChans); + tokens["CHANNELLEN"] = ConvToStr(ServerInstance->Config->Limits.ChanMax); + tokens["CHANTYPES"] = "#"; + tokens["HOSTLEN"] = ConvToStr(ServerInstance->Config->Limits.MaxHost); + tokens["KICKLEN"] = ConvToStr(ServerInstance->Config->Limits.MaxKick); + tokens["LINELEN"] = ConvToStr(ServerInstance->Config->Limits.MaxLine); + tokens["MAXTARGETS"] = ConvToStr(ServerInstance->Config->MaxTargets); + tokens["MODES"] = ConvToStr(ServerInstance->Config->Limits.MaxModes); + tokens["NAMELEN"] = ConvToStr(ServerInstance->Config->Limits.MaxReal); + tokens["NETWORK"] = ServerInstance->Config->Network; + tokens["NICKLEN"] = ConvToStr(ServerInstance->Config->Limits.NickMax); + tokens["PREFIX"] = ServerInstance->Modes->BuildPrefixes(); + tokens["STATUSMSG"] = ServerInstance->Modes->BuildPrefixes(false); + tokens["TOPICLEN"] = ConvToStr(ServerInstance->Config->Limits.MaxTopic); + tokens["USERLEN"] = ConvToStr(ServerInstance->Config->Limits.IdentMax); + + // Modules can add new tokens and also edit or remove existing tokens + FOREACH_MOD(On005Numeric, (tokens)); + + // EXTBAN is a special case as we need to sort it and prepend a comma. + std::map::iterator extban = tokens.find("EXTBAN"); + if (extban != tokens.end()) + { + std::sort(extban->second.begin(), extban->second.end()); + extban->second.insert(0, ","); + } + + // Transform the map into a list of lines, ready to be sent to clients + Numeric::Numeric numeric(RPL_ISUPPORT); + unsigned int token_count = 0; + cachedlines.clear(); + + for (std::map::const_iterator it = tokens.begin(); it != tokens.end(); ++it) + { + numeric.push(it->first); + std::string& token = numeric.GetParams().back(); + AppendValue(token, it->second); + + token_count++; + + if (token_count % 13 == 12 || it == --tokens.end()) + { + // Reached maximum number of tokens for this line or the current token + // is the last one; finalize the line and store it for later use + numeric.push("are supported by this server"); + cachedlines.push_back(numeric); + numeric.GetParams().clear(); + } + } } +void ISupportManager::SendTo(LocalUser* user) +{ + for (std::vector::const_iterator i = cachedlines.begin(); i != cachedlines.end(); ++i) + user->WriteNumeric(*i); +}