src/modules/m_override.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 using namespace std;
  18
  19 #include <stdio.h>
  20 #include "users.h"
  21 #include "channels.h"
  22 #include "modules.h"
  23 #include "helperfuncs.h"
  24
  25 /* $ModDesc: Provides support for unreal-style oper-override */
  26
  27 char dummyvalue[] = "on";
  28
  29 class ModuleOverride : public Module
  30 {
  31         Server *Srv;
  32         bool NoisyOverride;
  33         ConfigReader *Conf;
  34
  35  public:
  36
  37         ModuleOverride()
  38         {
  39
  40                 // here we initialise our module. Use new to create new instances of the required
  41                 // classes.
  42
  43                 Srv = new Server;
  44                 Conf = new ConfigReader;
  45
  46                 // read our config options (main config file)
  47                 NoisyOverride = Conf->ReadFlag("override","noisy",0);
  48         }
  49
  50         virtual void OnRehash(std::string parameter)
  51         {
  52                 // on a rehash we delete our classes for good measure and create them again.
  53                 delete Conf;
  54                 Conf = new ConfigReader;
  55                 // re-read our config options on a rehash
  56                 NoisyOverride = Conf->ReadFlag("override","noisy",0);
  57         }
  58
  59         virtual void On005Numeric(std::string &output)
  60         {
  61                 output = output + std::string(" OVERRIDE");
  62         }
  63
  64         virtual bool CanOverride(userrec* source, char* token)
  65         {
  66                 // checks to see if the oper's type has <type:override>
  67                 for (int j =0; j < Conf->Enumerate("type"); j++)
  68                 {
  69                         std::string typen = Conf->ReadValue("type","name",j);
  70                         if (!strcmp(typen.c_str(),source->oper))
  71                         {
  72                                 // its defined, return its value as a boolean for if the token is set
  73                                 std::string tokenlist = Conf->ReadValue("type","override",j);
  74                                 return strstr(tokenlist.c_str(),token);
  75                         }
  76                 }
  77                 // its not defined at all, count as false
  78                 return false;
  79         }
  80
  81         virtual int OnAccessCheck(userrec* source,userrec* dest,chanrec* channel,int access_type)
  82         {
  83                 if (strchr(source->modes,'o'))
  84                 {
  85                         if ((Srv) && (source) && (channel))
  86                         {
  87                                 // Fix by brain - allow the change if they arent on channel - rely on boolean short-circuit
  88                                 // to not check the other items in the statement if they arent on the channel
  89                                 if ((!Srv->IsOnChannel(source,channel)) || ((Srv->ChanMode(source,channel) != "%") && (Srv->ChanMode(source,channel) != "@")))
  90                                 {
  91                                         switch (access_type)
  92                                         {
  93                                                 case AC_KICK:
  94                                                         if (CanOverride(source,"KICK"))
  95                                                         {
  96                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Kicked "+std::string(dest->nick)+" on "+std::string(channel->name));
  97                                                                 return ACR_ALLOW;
  98                                                         }
  99                                                         else return ACR_DEFAULT;
 100                                                 break;
 101                                                 case AC_DEOP:
 102                                                         if (CanOverride(source,"MODEOP"))
 103                                                         {
 104                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Deopped "+std::string(dest->nick)+" on "+std::string(channel->name));
 105                                                                 return ACR_ALLOW;
 106                                                         }
 107                                                         else return ACR_DEFAULT;
 108                                                 break;
 109                                                 case AC_OP:
 110                                                         if (CanOverride(source,"MODEDEOP"))
 111                                                         {
 112                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Opped "+std::string(dest->nick)+" on "+std::string(channel->name));
 113                                                                 return ACR_ALLOW;
 114                                                         }
 115                                                         else return ACR_DEFAULT;
 116                                                 break;
 117                                                 case AC_VOICE:
 118                                                         if (CanOverride(source,"MODEVOICE"))
 119                                                         {
 120                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Voiced "+std::string(dest->nick)+" on "+std::string(channel->name));
 121                                                                 return ACR_ALLOW;
 122                                                         }
 123                                                         else return ACR_DEFAULT;
 124                                                 break;
 125                                                 case AC_DEVOICE:
 126                                                         if (CanOverride(source,"MODEDEVOICE"))
 127                                                         {
 128                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Devoiced "+std::string(dest->nick)+" on "+std::string(channel->name));
 129                                                                 return ACR_ALLOW;
 130                                                         }
 131                                                         else return ACR_DEFAULT;
 132                                                 break;
 133                                                 case AC_HALFOP:
 134                                                         if (CanOverride(source,"MODEHALFOP"))
 135                                                         {
 136                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Halfopped "+std::string(dest->nick)+" on "+std::string(channel->name));
 137                                                                 return ACR_ALLOW;
 138                                                         }
 139                                                         else return ACR_DEFAULT;
 140                                                 break;
 141                                                 case AC_DEHALFOP:
 142                                                         if (CanOverride(source,"MODEDEHALFOP"))
 143                                                         {
 144                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Dehalfopped "+std::string(dest->nick)+" on "+std::string(channel->name));
 145                                                                 return ACR_ALLOW;
 146                                                         }
 147                                                         else return ACR_DEFAULT;
 148                                                 break;
 149                                         }
 150                                 }
 151                         }
 152                         if (CanOverride(source,"OTHERMODE"))
 153                         {
 154                                 return ACR_ALLOW;
 155                         }
 156                         else
 157                         {
 158                                 return ACR_DEFAULT;
 159                         }
 160                 }
 161
 162                 return ACR_DEFAULT;
 163         }
 164
 165         virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname)
 166         {
 167                 if (strchr(user->modes,'o'))
 168                 {
 169                         if (chan)
 170                         {
 171                                 if ((chan->binarymodes & CM_INVITEONLY) && (CanOverride(user,"INVITE")))
 172                                 {
 173                                         if (NoisyOverride)
 174                                         {
 175                                                 if (!user->IsInvited(chan->name))
 176                                                 {
 177                                                         WriteChannelWithServ((char*)Srv->GetServerName().c_str(),chan,"NOTICE %s :%s invited himself into the channel",cname,user->nick);
 178                                                 }
 179                                         }
 180                                         Srv->SendOpers("*** "+std::string(user->nick)+" used operoverride to bypass +i on "+std::string(cname));
 181                                         return -1;
 182                                 }
 183                                 if ((chan->key[0]) && (CanOverride(user,"KEY")))
 184                                 {
 185                                         if (NoisyOverride)
 186                                                 WriteChannelWithServ((char*)Srv->GetServerName().c_str(),chan,"NOTICE %s :%s bypassed the channel key",cname,user->nick);
 187                                         Srv->SendOpers("*** "+std::string(user->nick)+" used operoverride to bypass +k on "+std::string(cname));
 188                                         return -1;
 189                                 }
 190                                 if ((chan->limit >= Srv->CountUsers(chan)) && (CanOverride(user,"LIMIT")))
 191                                 {
 192                                         if (NoisyOverride)
 193                                                 WriteChannelWithServ((char*)Srv->GetServerName().c_str(),chan,"NOTICE %s :%s passed through your channel limit",cname,user->nick);
 194                                         Srv->SendOpers("*** "+std::string(user->nick)+" used operoverride to bypass +l on "+std::string(cname));
 195                                         return -1;
 196                                 }
 197
 198                                 if (CanOverride(user,"BANWALK"))
 199                                 {
 200                                         // other join
 201                                         return -1;
 202                                 }
 203                         }
 204                 }
 205                 return 0;
 206         }
 207
 208         virtual ~ModuleOverride()
 209         {
 210                 delete Conf;
 211                 delete Srv;
 212         }
 213
 214         virtual Version GetVersion()
 215         {
 216                 return Version(1,0,0,1,VF_VENDOR);
 217         }
 218 };
 219
 220
 221 class ModuleOverrideFactory : public ModuleFactory
 222 {
 223  public:
 224         ModuleOverrideFactory()
 225         {
 226         }
 227
 228         ~ModuleOverrideFactory()
 229         {
 230         }
 231
 232         virtual Module * CreateModule()
 233         {
 234                 return new ModuleOverride;
 235         }
 236
 237 };
 238
 239
 240 extern "C" void * init_module( void )
 241 {
 242         return new ModuleOverrideFactory;
 243 }
 244