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