src/commands/cmd_rehash.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
   6  * See: http://wiki.inspircd.org/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *            the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 #include "inspircd.h"
  15 #include "xline.h"
  16 /*       +------------------------------------+
  17  *       | Inspire Internet Relay Chat Daemon |
  18  *       +------------------------------------+
  19  *
  20  *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
  21  * See: http://wiki.inspircd.org/Credits
  22  *
  23  * This program is free but copyrighted software; see
  24  *      the file COPYING for details.
  25  *
  26  * ---------------------------------------------------
  27  */
  28
  29 #ifndef __CMD_REHASH_H__
  30 #define __CMD_REHASH_H__
  31
  32 // include the common header files
  33
  34 #include "users.h"
  35 #include "channels.h"
  36
  37 /** Handle /REHASH. These command handlers can be reloaded by the core,
  38  * and handle basic RFC1459 commands. Commands within modules work
  39  * the same way, however, they can be fully unloaded, where these
  40  * may not.
  41  */
  42 class CommandRehash : public Command
  43 {
  44  public:
  45         /** Constructor for rehash.
  46          */
  47         CommandRehash (InspIRCd* Instance, Module* parent) : Command(Instance,parent,"REHASH","o",0,false,3) { syntax = "[<servermask>]"; }
  48         /** Handle command.
  49          * @param parameters The parameters to the comamnd
  50          * @param pcnt The number of parameters passed to teh command
  51          * @param user The user issuing the command
  52          * @return A value from CmdResult to indicate command success or failure.
  53          */
  54         CmdResult Handle(const std::vector<std::string>& parameters, User *user);
  55 };
  56
  57 #endif
  58
  59
  60
  61 CmdResult CommandRehash::Handle (const std::vector<std::string>& parameters, User *user)
  62 {
  63         std::string param = parameters.size() ? parameters[0] : "";
  64
  65         FOREACH_MOD(I_OnPreRehash,OnPreRehash(user, param));
  66
  67         if (param.empty())
  68         {
  69                 // standard rehash of local server
  70         }
  71         else if (param.find_first_of("*.") != std::string::npos)
  72         {
  73                 // rehash of servers by server name (with wildcard)
  74                 if (!InspIRCd::Match(ServerInstance->Config->ServerName, parameters[0]))
  75                 {
  76                         // Doesn't match us. PreRehash is already done, nothing left to do
  77                         return CMD_SUCCESS;
  78                 }
  79         }
  80         else
  81         {
  82                 // parameterized rehash
  83
  84                 // the leading "-" is optional; remove it if present.
  85                 if (param[0] == '-')
  86                         param = param.substr(1);
  87
  88                 FOREACH_MOD(I_OnModuleRehash,OnModuleRehash(user, param));
  89                 return CMD_SUCCESS;
  90         }
  91
  92         // Rehash for me. Try to start the rehash thread
  93         if (!ServerInstance->ConfigThread)
  94         {
  95                 std::string m = user->nick + " is rehashing config file " + ServerConfig::CleanFilename(ServerInstance->ConfigFileName) + " on " + ServerInstance->Config->ServerName;
  96                 ServerInstance->SNO->WriteGlobalSno('a', m);
  97
  98                 if (IS_LOCAL(user))
  99                         user->WriteNumeric(RPL_REHASHING, "%s %s :Rehashing",
 100                                 user->nick.c_str(),ServerConfig::CleanFilename(ServerInstance->ConfigFileName));
 101                 else
 102                         ServerInstance->PI->SendUserNotice(user, std::string("*** Rehashing server ") +
 103                                 ServerConfig::CleanFilename(ServerInstance->ConfigFileName));
 104
 105                 /* Don't do anything with the logs here -- logs are restarted
 106                  * after the config thread has completed.
 107                  */
 108
 109                 ServerInstance->RehashUsersAndChans();
 110                 FOREACH_MOD(I_OnGarbageCollect, OnGarbageCollect());
 111
 112
 113                 ServerInstance->ConfigThread = new ConfigReaderThread(ServerInstance, user->uuid);
 114                 ServerInstance->Threads->Start(ServerInstance->ConfigThread);
 115
 116                 return CMD_SUCCESS;
 117         }
 118         else
 119         {
 120                 /*
 121                  * A rehash is already in progress! ahh shit.
 122                  * XXX, todo: we should find some way to kill runaway rehashes that are blocking, this is a major problem for unrealircd users
 123                  */
 124                 if (IS_LOCAL(user))
 125                         user->WriteServ("NOTICE %s :*** Could not rehash: A rehash is already in progress.", user->nick.c_str());
 126                 else
 127                         ServerInstance->PI->SendUserNotice(user, "*** Could not rehash: A rehash is already in progress.");
 128
 129                 return CMD_FAILURE;
 130         }
 131 }
 132
 133
 134 COMMAND_INIT(CommandRehash)