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[user/henk/code/inspircd.git] / src / logger.cpp
index c30dae8322e05b4aae5f203f562a1edbf06ddd14..89b2be019721289c241b4839bb591820215b1b84 100644 (file)
@@ -1,20 +1,29 @@
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
+ *   Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
+ *   Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
  *
- *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ * 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 free but copyrighted software; see
- *            the file COPYING for details.
+ * 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 <http://www.gnu.org/licenses/>.
  */
 
-/* $Core: libIRCDlogger */
 
 #include "inspircd.h"
 
+#include "filelogger.h"
+
 /*
  * Suggested implementation...
  *     class LogManager
@@ -29,7 +38,7 @@
  *
  * 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 
+ *  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
  * 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 *..
- * 
+ *
  */
 
-bool LogManager::AddLogType(const std::string &type, LogStream *l)
+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<std::string, FileWriter*> 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 (method != "file")
+               {
+                       continue;
+               }
+               std::string type = tag->getString("type");
+               std::string level = tag->getString("level");
+               int loglevel = DEFAULT;
+               if (level == "rawio")
+               {
+                       loglevel = RAWIO;
+                       ServerInstance->Config->RawLog = true;
+               }
+               else if (level == "debug")
+               {
+                       loglevel = DEBUG;
+               }
+               else if (level == "verbose")
+               {
+                       loglevel = VERBOSE;
+               }
+               else if (level == "default")
+               {
+                       loglevel = DEFAULT;
+               }
+               else if (level == "sparse")
+               {
+                       loglevel = SPARSE;
+               }
+               else if (level == "none")
+               {
+                       loglevel = NONE;
+               }
+               FileWriter* fw;
+               std::string target = tag->getString("target");
+               std::map<std::string, FileWriter*>::iterator fwi = logmap.find(target);
+               if (fwi == logmap.end())
+               {
+                       char realtarget[MAXBUF];
+                       time_t time = ServerInstance->Time();
+                       struct tm *mytime = gmtime(&time);
+                       strftime(realtarget, MAXBUF, target.c_str(), mytime);
+                       FILE* f = fopen(realtarget, "a");
+                       fw = new FileWriter(f);
+                       logmap.insert(std::make_pair(target, fw));
+               }
+               else
+               {
+                       fw = fwi->second;
+               }
+               FileLogStream* fls = new FileLogStream(loglevel, fw);
+               fls->OnLog(SPARSE, "HEADER", InspIRCd::LogHeader);
+               AddLogTypes(type, fls, true);
+       }
+}
+
+void LogManager::CloseLogs()
+{
+       if (ServerInstance->Config && ServerInstance->Config->cmdline.forcedebug)
+               return;
+       std::map<std::string, std::vector<LogStream*> >().swap(LogStreams); /* Clear it */
+       std::map<LogStream*, std::vector<std::string> >().swap(GlobalLogStreams); /* Clear it */
+       for (std::map<LogStream*, int>::iterator i = AllLogStreams.begin(); i != AllLogStreams.end(); ++i)
+       {
+               delete i->first;
+       }
+       std::map<LogStream*, int>().swap(AllLogStreams); /* And clear it */
+}
+
+void LogManager::AddLogTypes(const std::string &types, LogStream* l, bool autoclose)
+{
+       irc::spacesepstream css(types);
+       std::string tok;
+       std::vector<std::string> 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<std::string>::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<LogStream *, std::vector<std::string> >::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)
 {
        std::map<std::string, std::vector<LogStream *> >::iterator i = LogStreams.find(type);
 
        if (i != LogStreams.end())
+       {
                i->second.push_back(l);
+       }
        else
        {
                std::vector<LogStream *> v;
@@ -56,55 +201,107 @@ bool LogManager::AddLogType(const std::string &type, LogStream *l)
        }
 
        if (type == "*")
-               GlobalLogStreams.push_back(l);
+       {
+               GlobalLogStreams.insert(std::make_pair(l, std::vector<std::string>()));
+       }
+
+       if (autoclose)
+       {
+               std::map<LogStream*, int>::iterator ai = AllLogStreams.find(l);
+               if (ai == AllLogStreams.end())
+               {
+                       AllLogStreams.insert(std::make_pair(l, 1));
+               }
+               else
+               {
+                       ++ai->second;
+               }
+       }
 
        return true;
 }
 
-bool LogManager::DelLogType(const std::string &type, LogStream *l)
+void LogManager::DelLogStream(LogStream* l)
 {
-       std::map<std::string, std::vector<LogStream *> >::iterator i = LogStreams.find(type);
-       std::vector<LogStream *>::iterator gi = GlobalLogStreams.begin();
-
-       while (gi != GlobalLogStreams.end())
+       for (std::map<std::string, std::vector<LogStream*> >::iterator i = LogStreams.begin(); i != LogStreams.end(); ++i)
        {
-               if ((*gi) == l)
+               std::vector<LogStream*>::iterator it;
+               while ((it = std::find(i->second.begin(), i->second.end(), l)) != i->second.end())
                {
-                       GlobalLogStreams.erase(gi);
-                       break;
+                       if (it == i->second.end())
+                               continue;
+                       i->second.erase(it);
                }
        }
+       std::map<LogStream *, std::vector<std::string> >::iterator gi = GlobalLogStreams.find(l);
+       if (gi != GlobalLogStreams.end())
+       {
+               GlobalLogStreams.erase(gi);
+       }
+       std::map<LogStream*, int>::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<std::string, std::vector<LogStream *> >::iterator i = LogStreams.find(type);
+       if (type == "*")
+       {
+               std::map<LogStream *, std::vector<std::string> >::iterator gi = GlobalLogStreams.find(l);
+               if (gi != GlobalLogStreams.end()) GlobalLogStreams.erase(gi);
+       }
 
        if (i != LogStreams.end())
        {
-               std::vector<LogStream *>::iterator it = i->second.begin();
+               std::vector<LogStream *>::iterator it = std::find(i->second.begin(), i->second.end(), l);
 
-               while (it != i->second.end())
+               if (it != i->second.end())
                {
-                       if (*it == l)
+                       i->second.erase(it);
+                       if (i->second.size() == 0)
                        {
-                               i->second.erase(it);
-
-                               if (i->second.size() == 0)
-                               {
-                                       LogStreams.erase(i);
-                               }
-
-                               delete l;
-                               return true;
+                               LogStreams.erase(i);
                        }
-
-                       it++;
                }
+               else
+               {
+                       return false;
+               }
+       }
+       else
+       {
+               return false;
+       }
+
+       std::map<LogStream*, int>::iterator ai = AllLogStreams.find(l);
+       if (ai == AllLogStreams.end())
+       {
+               return true;
+       }
+
+       if ((--ai->second) < 1)
+       {
+               AllLogStreams.erase(ai);
+               delete l;
        }
 
-       return false;
+       return true;
 }
 
 void LogManager::Log(const std::string &type, int loglevel, const char *fmt, ...)
 {
+       if (Logging)
+       {
+               return;
+       }
+
        va_list a;
-       char buf[65536];
+       static char buf[65536];
 
        va_start(a, fmt);
        vsnprintf(buf, 65536, fmt, a);
@@ -115,31 +312,61 @@ void LogManager::Log(const std::string &type, int loglevel, const char *fmt, ...
 
 void LogManager::Log(const std::string &type, int loglevel, const std::string &msg)
 {
-       std::map<std::string, std::vector<LogStream *> >::iterator i = LogStreams.find(type);
-
-       if (i != LogStreams.end())
+       if (Logging)
        {
-               std::vector<LogStream *>::iterator it = i->second.begin();
+               return;
+       }
 
-               while (it != i->second.end())
+       Logging = true;
+
+       for (std::map<LogStream *, std::vector<std::string> >::iterator gi = GlobalLogStreams.begin(); gi != GlobalLogStreams.end(); ++gi)
+       {
+               if (std::find(gi->second.begin(), gi->second.end(), type) != gi->second.end())
                {
-                       (*it)->OnLog(loglevel, msg);
-                       it++;
+                       continue;
                }
-
-               return;
+               gi->first->OnLog(loglevel, type, msg);
        }
 
-       std::vector<LogStream *>::iterator gi = GlobalLogStreams.begin();
+       std::map<std::string, std::vector<LogStream *> >::iterator i = LogStreams.find(type);
 
-       while (gi != GlobalLogStreams.end())
+       if (i != LogStreams.end())
        {
-               (*gi)->OnLog(loglevel, msg);
-               gi++;
+               for (std::vector<LogStream *>::iterator it = i->second.begin(); it != i->second.end(); ++it)
+               {
+                       (*it)->OnLog(loglevel, type, msg);
+               }
        }
 
-       // blurp, no handler for this type
-       return;
+       Logging = false;
+}
+
+
+FileWriter::FileWriter(FILE* logfile)
+: log(logfile), 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");
+
+       fprintf(log,"%s",line.c_str());
+       if (writeops++ % 20)
+       {
+               fflush(log);
+       }
+}
 
+FileWriter::~FileWriter()
+{
+       if (log)
+       {
+               fflush(log);
+               fclose(log);
+               log = NULL;
+       }
+}