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