X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Flogger.cpp;h=5ebcf4b00d782f0b5903a38c1d092ca94413c017;hb=d494fa6e094e85cd29235e995fb2b447d6e1f168;hp=b66b34b8e3d14648990c2859493b0ccf137f4328;hpb=bf77b312c8e15da249991cff43432c21b44807d7;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/logger.cpp b/src/logger.cpp index b66b34b8e..5ebcf4b00 100644 --- a/src/logger.cpp +++ b/src/logger.cpp @@ -1,17 +1,346 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd: (C) 2002-2008 InspIRCd Development Team - * See: http://www.inspircd.org/wiki/index.php/Credits + * Copyright (C) 2013-2014 Attila Molnar + * Copyright (C) 2013, 2017-2018, 2020 Sadie Powell + * Copyright (C) 2013 Daniel Vassdal + * Copyright (C) 2012 Robby + * Copyright (C) 2010 Craig Edwards + * Copyright (C) 2010 Adam + * Copyright (C) 2009-2010 Daniel De Graaf + * Copyright (C) 2009 Uli Schlachter + * Copyright (C) 2008-2009 Robin Burchell + * Copyright (C) 2008 Thomas Stagner * - * 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 . */ -/* $Core: libIRCDlogger */ #include "inspircd.h" +/* + * Suggested implementation... + * class LogManager + * bool AddLogType(const std::string &type, enum loglevel, LogStream *) + * bool DelLogType(const std::string &type, LogStream *) + * Log(const std::string &type, enum loglevel, const std::string &msg) + * std::map > logstreams (holds a 'chain' of logstreams for each type that are all notified when a log happens) + * + * class LogStream + * std::string type + * virtual void OnLog(enum loglevel, const std::string &msg) + * + * How it works: + * Modules create their own logstream types (core will create one for 'file logging' for example) and create instances of these logstream types + * and register interest in a certain logtype. Globbing is not here, with the exception of * - for all events.. loglevel is used to drop + * events that are of no interest to a logstream. + * + * When Log is called, the vector of logstreams for that type is iterated (along with the special vector for "*"), and all registered logstreams + * are called back ("OnLog" or whatever) to do whatever they like with the message. In the case of the core, this will write to a file. + * In the case of the module I plan to write (m_logtochannel or something), it will log to the channel(s) for that logstream, etc. + * + * NOTE: Somehow we have to let LogManager manage the non-blocking file streams and provide an interface to share them with various LogStreams, + * as, for example, a user may want to let 'KILL' and 'XLINE' snotices go to /home/ircd/inspircd/logs/operactions.log, or whatever. How + * can we accomplish this easily? I guess with a map of pre-loved logpaths, and a pointer of FILE *.. + * + */ + +const char LogStream::LogHeader[] = + "Log started for " INSPIRCD_VERSION; + +LogManager::LogManager() + : Logging(false) +{ +} + +LogManager::~LogManager() +{ +} + +void LogManager::OpenFileLogs() +{ + if (ServerInstance->Config->cmdline.forcedebug) + { + ServerInstance->Config->RawLog = true; + return; + } + /* Skip rest of logfile opening if we are running -nolog. */ + if (!ServerInstance->Config->cmdline.writelog) + return; + std::map logmap; + ConfigTagList tags = ServerInstance->Config->ConfTags("log"); + for(ConfigIter i = tags.first; i != tags.second; ++i) + { + ConfigTag* tag = i->second; + std::string method = tag->getString("method"); + if (!stdalgo::string::equalsci(method, "file")) + { + continue; + } + std::string type = tag->getString("type"); + std::string level = tag->getString("level"); + LogLevel loglevel = LOG_DEFAULT; + if (stdalgo::string::equalsci(level, "rawio")) + { + loglevel = LOG_RAWIO; + ServerInstance->Config->RawLog = true; + } + else if (stdalgo::string::equalsci(level, "debug")) + { + loglevel = LOG_DEBUG; + } + else if (stdalgo::string::equalsci(level, "verbose")) + { + loglevel = LOG_VERBOSE; + } + else if (stdalgo::string::equalsci(level, "default")) + { + loglevel = LOG_DEFAULT; + } + else if (stdalgo::string::equalsci(level, "sparse")) + { + loglevel = LOG_SPARSE; + } + else if (stdalgo::string::equalsci(level, "none")) + { + loglevel = LOG_NONE; + } + FileWriter* fw; + std::string target = ServerInstance->Config->Paths.PrependLog(tag->getString("target")); + std::map::iterator fwi = logmap.find(target); + if (fwi == logmap.end()) + { + char realtarget[256]; + time_t time = ServerInstance->Time(); + struct tm *mytime = gmtime(&time); + strftime(realtarget, sizeof(realtarget), target.c_str(), mytime); + FILE* f = fopen(realtarget, "a"); + fw = new FileWriter(f, tag->getUInt("flush", 20, 1, UINT_MAX)); + logmap.insert(std::make_pair(target, fw)); + } + else + { + fw = fwi->second; + } + FileLogStream* fls = new FileLogStream(loglevel, fw); + fls->OnLog(LOG_SPARSE, "HEADER", LogStream::LogHeader); + AddLogTypes(type, fls, true); + } +} + +void LogManager::CloseLogs() +{ + if (ServerInstance->Config && ServerInstance->Config->cmdline.forcedebug) + return; + + LogStreams.clear(); + GlobalLogStreams.clear(); + + for (std::map::iterator i = AllLogStreams.begin(); i != AllLogStreams.end(); ++i) + { + delete i->first; + } + + AllLogStreams.clear(); +} + +void LogManager::AddLogTypes(const std::string &types, LogStream* l, bool autoclose) +{ + irc::spacesepstream css(types); + std::string tok; + std::vector excludes; + while (css.GetToken(tok)) + { + if (tok.empty()) + { + continue; + } + if (tok.at(0) == '-') + { + /* Exclude! */ + excludes.push_back(tok.substr(1)); + } + else + { + AddLogType(tok, l, autoclose); + } + } + // Handle doing things like: USERINPUT USEROUTPUT -USERINPUT should be the same as saying just USEROUTPUT. + // (This is so modules could, for example, inject exclusions for logtypes they can't handle.) + for (std::vector::iterator i = excludes.begin(); i != excludes.end(); ++i) + { + if (*i == "*") + { + /* -* == Exclude all. Why someone would do this, I dunno. */ + DelLogStream(l); + return; + } + DelLogType(*i, l); + } + // Now if it's registered as a global, add the exclusions there too. + std::map >::iterator gi = GlobalLogStreams.find(l); + if (gi != GlobalLogStreams.end()) + { + gi->second.swap(excludes); // Swap with the vector in the hash. + } +} + +bool LogManager::AddLogType(const std::string &type, LogStream *l, bool autoclose) +{ + LogStreams[type].push_back(l); + + if (type == "*") + GlobalLogStreams.insert(std::make_pair(l, std::vector())); + + if (autoclose) + AllLogStreams[l]++; + + return true; +} + +void LogManager::DelLogStream(LogStream* l) +{ + for (std::map >::iterator i = LogStreams.begin(); i != LogStreams.end(); ++i) + { + while (stdalgo::erase(i->second, l)) + { + // Keep erasing while it exists + } + } + + GlobalLogStreams.erase(l); + + std::map::iterator ai = AllLogStreams.begin(); + if (ai == AllLogStreams.end()) + { + return; /* Done. */ + } + + delete ai->first; + AllLogStreams.erase(ai); +} + +bool LogManager::DelLogType(const std::string &type, LogStream *l) +{ + std::map >::iterator i = LogStreams.find(type); + if (type == "*") + { + GlobalLogStreams.erase(l); + } + + if (i != LogStreams.end()) + { + if (stdalgo::erase(i->second, l)) + { + if (i->second.size() == 0) + { + LogStreams.erase(i); + } + } + else + { + return false; + } + } + else + { + return false; + } + + std::map::iterator ai = AllLogStreams.find(l); + if (ai == AllLogStreams.end()) + { + return true; + } + + if ((--ai->second) < 1) + { + AllLogStreams.erase(ai); + delete l; + } + + return true; +} + +void LogManager::Log(const std::string &type, LogLevel loglevel, const char *fmt, ...) +{ + if (Logging) + return; + + std::string buf; + VAFORMAT(buf, fmt, fmt); + this->Log(type, loglevel, buf); +} + +void LogManager::Log(const std::string &type, LogLevel loglevel, const std::string &msg) +{ + if (Logging) + { + return; + } + + Logging = true; + + for (std::map >::iterator gi = GlobalLogStreams.begin(); gi != GlobalLogStreams.end(); ++gi) + { + if (stdalgo::isin(gi->second, type)) + { + continue; + } + gi->first->OnLog(loglevel, type, msg); + } + + std::map >::iterator i = LogStreams.find(type); + + if (i != LogStreams.end()) + { + for (std::vector::iterator it = i->second.begin(); it != i->second.end(); ++it) + { + (*it)->OnLog(loglevel, type, msg); + } + } + + Logging = false; +} + + +FileWriter::FileWriter(FILE* logfile, unsigned int flushcount) + : log(logfile) + , flush(flushcount) + , writeops(0) +{ +} + +void FileWriter::WriteLogLine(const std::string &line) +{ + if (log == NULL) + return; +// XXX: For now, just return. Don't throw an exception. It'd be nice to find out if this is happening, but I'm terrified of breaking so close to final release. -- w00t +// throw CoreException("FileWriter::WriteLogLine called with a closed logfile"); + + fputs(line.c_str(), log); + if (++writeops % flush == 0) + { + fflush(log); + } +} + +FileWriter::~FileWriter() +{ + if (log) + { + fflush(log); + fclose(log); + log = NULL; + } +}