src/server.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *            the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 /* $Core: libIRCDserver */
  15
  16 #include <signal.h>
  17 #include "exitcodes.h"
  18 #include "inspircd.h"
  19
  20
  21 void InspIRCd::SignalHandler(int signal)
  22 {
  23         switch (signal)
  24         {
  25                 case SIGHUP:
  26                         Rehash();
  27                         break;
  28                 case SIGTERM:
  29                         Exit(signal);
  30                         break;
  31         }
  32 }
  33
  34 void InspIRCd::Exit(int status)
  35 {
  36 #ifdef WINDOWS
  37         delete WindowsIPC;
  38 #endif
  39         if (this)
  40         {
  41                 this->SendError("Exiting with status " + ConvToStr(status) + " (" + std::string(ExitCodes[status]) + ")");
  42                 this->Cleanup();
  43         }
  44         exit (status);
  45 }
  46
  47 void InspIRCd::Rehash()
  48 {
  49         this->SNO->WriteToSnoMask('A', "Rehashing config file %s due to SIGHUP",ServerConfig::CleanFilename(this->ConfigFileName));
  50         this->RehashUsersAndChans();
  51         FOREACH_MOD_I(this, I_OnGarbageCollect, OnGarbageCollect());
  52         /*this->Config->Read(false,NULL);*/
  53         this->ResetMaxBans();
  54         this->Res->Rehash();
  55         FOREACH_MOD_I(this,I_OnRehash,OnRehash(NULL,""));
  56         this->BuildISupport();
  57 }
  58
  59 void InspIRCd::RehashServer()
  60 {
  61         this->SNO->WriteToSnoMask('A', "Rehashing config file");
  62         this->RehashUsersAndChans();
  63         /*this->Config->Read(false,NULL);*/
  64         this->ResetMaxBans();
  65         this->Res->Rehash();
  66 }
  67
  68 std::string InspIRCd::GetVersionString()
  69 {
  70         char versiondata[MAXBUF];
  71         if (*Config->CustomVersion)
  72         {
  73                 snprintf(versiondata,MAXBUF,"%s %s :%s",VERSION,Config->ServerName,Config->CustomVersion);
  74         }
  75         else
  76         {
  77                 snprintf(versiondata,MAXBUF,"%s %s :%s [FLAGS=%s,%s,%s]",VERSION,Config->ServerName,SYSTEM,REVISION,SE->GetName().c_str(),Config->sid);
  78         }
  79         return versiondata;
  80 }
  81
  82 void InspIRCd::BuildISupport()
  83 {
  84         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
  85         std::stringstream v;
  86         v << "WALLCHOPS WALLVOICES MODES=" << MAXMODES << " CHANTYPES=# PREFIX=" << this->Modes->BuildPrefixes() << " MAP MAXCHANNELS=" << Config->MaxChans << " MAXBANS=60 VBANLIST NICKLEN=" << NICKMAX-1;
  87         v << " CASEMAPPING=rfc1459 STATUSMSG=@" << (this->Config->AllowHalfop ? "%" : "") << "+ CHARSET=ascii TOPICLEN=" << MAXTOPIC << " KICKLEN=" << MAXKICK << " MAXTARGETS=" << Config->MaxTargets;
  88         v << " AWAYLEN=" << MAXAWAY << " CHANMODES=" << this->Modes->ChanModes() << " FNC NETWORK=" << Config->Network << " MAXPARA=32 ELIST=MU";
  89         Config->data005 = v.str();
  90         FOREACH_MOD_I(this,I_On005Numeric,On005Numeric(Config->data005));
  91         Config->Update005();
  92 }
  93
  94 std::string InspIRCd::GetRevision()
  95 {
  96         return REVISION;
  97 }
  98
  99 void InspIRCd::AddServerName(const std::string &servername)
 100 {
 101         servernamelist::iterator itr = servernames.begin();
 102         for(; itr != servernames.end(); ++itr)
 103                 if(**itr == servername)
 104                         return;
 105
 106         std::string * ns = new std::string(servername);
 107         servernames.push_back(ns);
 108 }
 109
 110 const char* InspIRCd::FindServerNamePtr(const std::string &servername)
 111 {
 112         servernamelist::iterator itr = servernames.begin();
 113         for(; itr != servernames.end(); ++itr)
 114                 if(**itr == servername)
 115                         return (*itr)->c_str();
 116
 117         servernames.push_back(new std::string(servername));
 118         itr = --servernames.end();
 119         return (*itr)->c_str();
 120 }
 121
 122 bool InspIRCd::FindServerName(const std::string &servername)
 123 {
 124         servernamelist::iterator itr = servernames.begin();
 125         for(; itr != servernames.end(); ++itr)
 126                 if(**itr == servername)
 127                         return true;
 128         return false;
 129 }
 130
 131 /*
 132  * Retrieve the next valid UUID that is free for this server.
 133  */
 134 std::string InspIRCd::GetUID()
 135 {
 136         int i;
 137
 138         /*
 139          * This will only finish once we return a UUID that is not in use.
 140          */
 141         while (1)
 142         {
 143                 /*
 144                  * Okay. The rules for generating a UID go like this...
 145                  * -- > ABCDEFGHIJKLMNOPQRSTUVWXYZ --> 012345679 --> WRAP
 146                  * That is, we start at A. When we reach Z, we go to 0. At 9, we go to
 147                  * A again, in an iterative fashion.. so..
 148                  * AAA9 -> AABA, and so on. -- w00t
 149                  */
 150
 151                 /* start at the end of the current UID string, work backwards. don't trample on SID! */
 152                 for (i = UUID_LENGTH - 2; i > 3; i--)
 153                 {
 154                         if (current_uid[i] == 'Z')
 155                         {
 156                                 /* reached the end of alphabetical, go to numeric range */
 157                                 current_uid[i] = '0';
 158                         }
 159                         else if (current_uid[i] == '9')
 160                         {
 161                                 /* we reached the end of the sequence, set back to A */
 162                                 current_uid[i] = 'A';
 163
 164                                 /* we also need to increment the next digit. */
 165                                 continue;
 166                         }
 167                         else
 168                         {
 169                                 /* most common case .. increment current UID */
 170                                 current_uid[i]++;
 171                         }
 172
 173                         if (current_uid[3] == 'Z')
 174                         {
 175                                 /*
 176                                  * Ugh. We have run out of room.. roll back around to the
 177                                  * start of the UUID namespace. -- w00t
 178                                  */
 179                                 this->InitialiseUID();
 180
 181                                 /*
 182                                  * and now we need to break the inner for () to continue the while (),
 183                                  * which will start the checking process over again. -- w00t
 184                                  */
 185                                 break;
 186
 187                         }
 188
 189                         if (this->FindUUID(current_uid))
 190                         {
 191                                 /*
 192                                  * It's in use. We need to try the loop again.
 193                                  */
 194                                 continue;
 195                         }
 196
 197                         return current_uid;
 198                 }
 199         }
 200
 201         /* not reached. */
 202         return "";
 203 }
 204
 205
 206