]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/server.cpp
Change the syntax of FOREACH macros to be less dumb.
[user/henk/code/inspircd.git] / src / server.cpp
index f1ed20c59dbf622ddce6b912109624e02995eb52..efefa0d37a4b713951057708e8ffc7844db63124 100644 (file)
-/*       +------------------------------------+
- *       | 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) 2007-2008 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
  *
- *  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: libIRCDserver */
 
 #include <signal.h>
 #include "exitcodes.h"
 #include "inspircd.h"
 
-
 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;
+               Rehash("Caught SIGHUP");
+       }
+       else if (signal == SIGTERM)
+#endif
+       {
+               Exit(EXIT_STATUS_SIGTERM);
        }
 }
 
 void InspIRCd::Exit(int status)
 {
-#ifdef WINDOWS
-       delete WindowsIPC;
+#ifdef _WIN32
+       SetServiceStopped(status);
 #endif
        if (this)
        {
                this->SendError("Exiting with status " + ConvToStr(status) + " (" + std::string(ExitCodes[status]) + ")");
                this->Cleanup();
+               delete this;
+               ServerInstance = NULL;
        }
        exit (status);
 }
 
-void InspIRCd::Rehash()
+void RehashHandler::Call(const std::string &reason)
 {
-       this->SNO->WriteToSnoMask('A', "Rehashing config file %s due to SIGHUP",ServerConfig::CleanFilename(this->ConfigFileName));
-       this->RehashUsersAndChans();
-       FOREACH_MOD_I(this, I_OnGarbageCollect, OnGarbageCollect());
-       if (!this->ConfigThread)
+       ServerInstance->SNO->WriteToSnoMask('a', "Rehashing config file %s %s",ServerConfig::CleanFilename(ServerInstance->ConfigFileName.c_str()), reason.c_str());
+       FOREACH_MOD(OnGarbageCollect, ());
+       if (!ServerInstance->ConfigThread)
        {
-               Config->RehashUser = NULL;
-               Config->RehashParameter = "";
-
-               ConfigThread = new ConfigReaderThread(this, false, NULL);
-               Threads->Create(ConfigThread);
+               ServerInstance->ConfigThread = new ConfigReaderThread("");
+               ServerInstance->Threads->Start(ServerInstance->ConfigThread);
        }
 }
 
-void InspIRCd::RehashServer()
+std::string InspIRCd::GetVersionString(bool getFullVersion)
 {
-       this->SNO->WriteToSnoMask('A', "Rehashing config file");
-       this->RehashUsersAndChans();
-       if (!this->ConfigThread)
-       {
-               Config->RehashUser = NULL;
-               Config->RehashParameter = "";
-
-               ConfigThread = new ConfigReaderThread(this, false, NULL);
-               Threads->Create(ConfigThread);
-       }
+       if (getFullVersion)
+               return VERSION " " + Config->ServerName + " :" SYSTEM " [" REVISION "," + SE->GetName() + "," + Config->sid + "]";
+       return BRANCH " " + Config->ServerName + " :" + Config->CustomVersion;
 }
 
-std::string InspIRCd::GetVersionString()
+std::string UIDGenerator::GenerateSID(const std::string& servername, const std::string& serverdesc)
 {
-       char versiondata[MAXBUF];
-       if (*Config->CustomVersion)
-       {
-               snprintf(versiondata,MAXBUF,"%s %s :%s",VERSION,Config->ServerName,Config->CustomVersion);
-       }
-       else
-       {
-               snprintf(versiondata,MAXBUF,"%s %s :%s [FLAGS=%s,%s,%s]",VERSION,Config->ServerName,SYSTEM,REVISION,SE->GetName().c_str(),Config->sid);
-       }
-       return versiondata;
-}
+       unsigned int sid = 0;
 
-void InspIRCd::BuildISupport()
-{
-       // 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 << " CHANTYPES=# PREFIX=" << this->Modes->BuildPrefixes() << " MAP MAXCHANNELS=" << Config->MaxChans << " MAXBANS=60 VBANLIST NICKLEN=" << NICKMAX-1;
-       v << " CASEMAPPING=rfc1459 STATUSMSG=@" << (this->Config->AllowHalfop ? "%" : "") << "+ CHARSET=ascii TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=" << Config->MaxTargets;
-       v << " AWAYLEN=" << 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();
-}
+       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 InspIRCd::GetRevision()
-{
-       return REVISION;
+       std::string sidstr = ConvToStr(sid % 1000);
+       sidstr.insert(0, 3 - sidstr.length(), '0');
+       return sidstr;
 }
 
-void InspIRCd::AddServerName(const std::string &servername)
+void UIDGenerator::IncrementUID(unsigned int pos)
 {
-       servernamelist::iterator itr = servernames.begin();
-       for(; itr != servernames.end(); ++itr)
-               if(**itr == servername)
-                       return;
+       /*
+        * 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
+        */
 
-       std::string * ns = new std::string(servername);
-       servernames.push_back(ns);
+       // If we hit Z, wrap around to 0.
+       if (current_uid[pos] == 'Z')
+       {
+               current_uid[pos] = '0';
+       }
+       else if (current_uid[pos] == '9')
+       {
+               /*
+                * 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
+       {
+               // Anything else, nobody gives a shit. Just increment.
+               current_uid[pos]++;
+       }
 }
 
-const char* InspIRCd::FindServerNamePtr(const std::string &servername)
+void UIDGenerator::init(const std::string& sid)
 {
-       servernamelist::iterator itr = servernames.begin();
-       for(; itr != servernames.end(); ++itr)
-               if(**itr == servername)
-                       return (*itr)->c_str();
-
-       servernames.push_back(new std::string(servername));
-       itr = --servernames.end();
-       return (*itr)->c_str();
-}
+       /*
+        * 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
+        */
 
-bool InspIRCd::FindServerName(const std::string &servername)
-{
-       servernamelist::iterator itr = servernames.begin();
-       for(; itr != servernames.end(); ++itr)
-               if(**itr == servername)
-                       return true;
-       return false;
+       current_uid.resize(UUID_LENGTH, '9');
+       current_uid[0] = sid[0];
+       current_uid[1] = sid[1];
+       current_uid[2] = sid[2];
 }
 
 /*
  * Retrieve the next valid UUID that is free for this server.
  */
-std::string InspIRCd::GetUID()
+std::string UIDGenerator::GetUID()
 {
-       static int curindex = -1;
-
-       if (curindex == -1)
-       {
-               // Starting up
-               current_uid[0] = Config->sid[0];
-               current_uid[1] = Config->sid[1];
-               current_uid[2] = Config->sid[2];
-
-               for (int i = 3; i < UUID_LENGTH; i++)
-                       current_uid[i] = 'Z';
-
-               current_uid[3] = 'Y'; // force fake client to get ZZZZZZZZ
-
-               curindex = 3;
-       }
-
        while (1)
        {
-               printf("Getting ID. curindex %d, current_uid %s\n", curindex, current_uid);
+               // Add one to the last UID
+               this->IncrementUID(UUID_LENGTH - 1);
 
-               if (curindex == 3)
-               {
-                       // Down to the last few.
-                       if (current_uid[curindex] == 'Z')
-                       {
-                               // Reset.
-                               for (int i = 3; i < UUID_LENGTH; i++)
-                               {
-                                       current_uid[i] = 'A';
-                                       curindex  = UUID_LENGTH - 1;
-                               }
-                       }
-                       else
-                               current_uid[curindex]++;
-               }
-               else
-               {
-                       if (current_uid[curindex] == 'Z')
-                               current_uid[curindex] = '0';
-                       else if (current_uid[curindex] == '9')
-                       {
-                               current_uid[curindex] = 'A';
-                               curindex--;
-                               continue;
-                       }
-                       else
-                               current_uid[curindex]++;
-               }
-
-                       if (this->FindUUID(current_uid))
-                       {
-                               /*
-                                * It's in use. We need to try the loop again.
-                                */
-                               continue;
-                       }
+               if (!ServerInstance->FindUUID(current_uid))
+                       break;
 
-                       return current_uid;
+               /*
+                * It's in use. We need to try the loop again.
+                */
        }
 
-#if 0
+       return current_uid;
+}
 
-       /*
-        * This will only finish once we return a UUID that is not in use.
+void ISupportManager::Build()
+{
+       /**
+        * This is currently the neatest way we can build the initial ISUPPORT map. In
+        * the future we can use an initializer list here.
         */
-       while (1)
+       std::map<std::string, std::string> tokens;
+
+       tokens["AWAYLEN"] = ConvToStr(ServerInstance->Config->Limits.MaxAway);
+       tokens["CASEMAPPING"] = "rfc1459";
+       tokens["CHANMODES"] = ServerInstance->Modes->GiveModeList(MASK_CHANNEL);
+       tokens["CHANNELLEN"] = ConvToStr(ServerInstance->Config->Limits.ChanMax);
+       tokens["CHANTYPES"] = "#";
+       tokens["CHARSET"] = "ascii";
+       tokens["ELIST"] = "MU";
+       tokens["KICKLEN"] = ConvToStr(ServerInstance->Config->Limits.MaxKick);
+       tokens["MAXBANS"] = "64"; // TODO: make this a config setting.
+       tokens["MAXCHANNELS"] = ConvToStr(ServerInstance->Config->MaxChans);
+       tokens["MAXTARGETS"] = ConvToStr(ServerInstance->Config->MaxTargets);
+       tokens["MODES"] = ConvToStr(ServerInstance->Config->Limits.MaxModes);
+       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["FNC"] = tokens["MAP"] = tokens["VBANLIST"] =
+               tokens["WALLCHOPS"] = tokens["WALLVOICES"];
+
+       // 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<std::string, std::string>::iterator extban = tokens.find("EXTBAN");
+       if (extban != tokens.end())
        {
-               /*
-                * 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
-                */
+               sort(extban->second.begin(), extban->second.end());
+               extban->second.insert(0, ",");
+       }
 
-               /* start at the end of the current UID string, work backwards. don't trample on SID! */
-               for (i = UUID_LENGTH - 2; i > 3; i--)
-               {
-                       if (current_uid[i] == 'Z')
-                       {
-                               /* reached the end of alphabetical, go to numeric range */
-                               current_uid[i] = '0';
-                       }
-                       else if (current_uid[i] == '9')
-                       {
-                               /* we reached the end of the sequence, set back to A */
-                               current_uid[i] = 'A';
+       // Transform the map into a list of lines, ready to be sent to clients
+       std::vector<std::string>& lines = this->Lines;
+       std::string line;
+       unsigned int token_count = 0;
+       lines.clear();
 
-                               /* we also need to increment the next digit. */
-                               continue;
-                       }
-                       else
-                       {
-                               /* most common case .. increment current UID */
-                               current_uid[i]++;
-                       }
+       for (std::map<std::string, std::string>::const_iterator it = tokens.begin(); it != tokens.end(); ++it)
+       {
+               line.append(it->first);
 
-                       if (current_uid[3] == 'Z')
-                       {
-                               /*
-                                * Ugh. We have run out of room.. roll back around to the
-                                * start of the UUID namespace. -- w00t
-                                */
-                               this->InitialiseUID();
+               // If this token has a value then append a '=' char after the name and then the value itself
+               if (!it->second.empty())
+                       line.append(1, '=').append(it->second);
 
-                               /*
-                                * and now we need to break the inner for () to continue the while (),
-                                * which will start the checking process over again. -- w00t
-                                */
-                               break;
-                               
-                       }
-                       
-                       if (this->FindUUID(current_uid))
-                       {
-                               /*
-                                * It's in use. We need to try the loop again.
-                                */
-                               continue;
-                       }
+               // Always append a space, even if it's the last token because all lines will be suffixed
+               line.push_back(' ');
+               token_count++;
 
-                       return current_uid;
+               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
+                       line.append(":are supported by this server");
+                       lines.push_back(line);
+                       line.clear();
                }
        }
-#endif
-       /* not reached. */
-       return "";
 }
 
-
-
+void ISupportManager::SendTo(LocalUser* user)
+{
+       for (std::vector<std::string>::const_iterator i = this->Lines.begin(); i != this->Lines.end(); ++i)
+               user->WriteNumeric(RPL_ISUPPORT, "%s %s", user->nick.c_str(), i->c_str());
+}