src/modules/m_override.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd is copyright (C) 2002-2006 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 class ModuleOverride : public Module
  28 {
  29         Server *Srv;
  30         bool NoisyOverride;
  31         ConfigReader *Conf;
  32
  33  public:
  34
  35         ModuleOverride(Server* Me)
  36                 : Module::Module(Me)
  37         {
  38
  39                 // here we initialise our module. Use new to create new instances of the required
  40                 // classes.
  41
  42                 Srv = Me;
  43                 Conf = new ConfigReader;
  44
  45                 // read our config options (main config file)
  46                 NoisyOverride = Conf->ReadFlag("override","noisy",0);
  47         }
  48
  49         virtual void OnRehash(std::string parameter)
  50         {
  51                 // on a rehash we delete our classes for good measure and create them again.
  52                 delete Conf;
  53                 Conf = new ConfigReader;
  54                 // re-read our config options on a rehash
  55                 NoisyOverride = Conf->ReadFlag("override","noisy",0);
  56         }
  57
  58         void Implements(char* List)
  59         {
  60                 List[I_OnRehash] = List[I_OnAccessCheck] = List[I_On005Numeric] = List[I_OnUserPreJoin] = 1;
  61         }
  62
  63         virtual void On005Numeric(std::string &output)
  64         {
  65                 output = output + std::string(" OVERRIDE");
  66         }
  67
  68         virtual bool CanOverride(userrec* source, char* token)
  69         {
  70                 // checks to see if the oper's type has <type:override>
  71                 for (int j =0; j < Conf->Enumerate("type"); j++)
  72                 {
  73                         std::string typen = Conf->ReadValue("type","name",j);
  74                         if (!strcmp(typen.c_str(),source->oper))
  75                         {
  76                                 // its defined, return its value as a boolean for if the token is set
  77                                 std::string tokenlist = Conf->ReadValue("type","override",j);
  78                                 return strstr(tokenlist.c_str(),token);
  79                         }
  80                 }
  81                 // its not defined at all, count as false
  82                 return false;
  83         }
  84
  85         virtual int OnAccessCheck(userrec* source,userrec* dest,chanrec* channel,int access_type)
  86         {
  87                 if (strchr(source->modes,'o'))
  88                 {
  89                         if ((Srv) && (source) && (channel))
  90                         {
  91                                 // Fix by brain - allow the change if they arent on channel - rely on boolean short-circuit
  92                                 // to not check the other items in the statement if they arent on the channel
  93                                 if ((!Srv->IsOnChannel(source,channel)) || ((Srv->ChanMode(source,channel) != "%") && (Srv->ChanMode(source,channel) != "@")))
  94                                 {
  95                                         switch (access_type)
  96                                         {
  97                                                 case AC_KICK:
  98                                                         if (CanOverride(source,"KICK"))
  99                                                         {
 100                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Kicked "+std::string(dest->nick)+" on "+std::string(channel->name));
 101                                                                 return ACR_ALLOW;
 102                                                         }
 103                                                         else return ACR_DEFAULT;
 104                                                 break;
 105                                                 case AC_DEOP:
 106                                                         if (CanOverride(source,"MODEOP"))
 107                                                         {
 108                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Deopped "+std::string(dest->nick)+" on "+std::string(channel->name));
 109                                                                 return ACR_ALLOW;
 110                                                         }
 111                                                         else return ACR_DEFAULT;
 112                                                 break;
 113                                                 case AC_OP:
 114                                                         if (CanOverride(source,"MODEDEOP"))
 115                                                         {
 116                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Opped "+std::string(dest->nick)+" on "+std::string(channel->name));
 117                                                                 return ACR_ALLOW;
 118                                                         }
 119                                                         else return ACR_DEFAULT;
 120                                                 break;
 121                                                 case AC_VOICE:
 122                                                         if (CanOverride(source,"MODEVOICE"))
 123                                                         {
 124                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Voiced "+std::string(dest->nick)+" on "+std::string(channel->name));
 125                                                                 return ACR_ALLOW;
 126                                                         }
 127                                                         else return ACR_DEFAULT;
 128                                                 break;
 129                                                 case AC_DEVOICE:
 130                                                         if (CanOverride(source,"MODEDEVOICE"))
 131                                                         {
 132                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Devoiced "+std::string(dest->nick)+" on "+std::string(channel->name));
 133                                                                 return ACR_ALLOW;
 134                                                         }
 135                                                         else return ACR_DEFAULT;
 136                                                 break;
 137                                                 case AC_HALFOP:
 138                                                         if (CanOverride(source,"MODEHALFOP"))
 139                                                         {
 140                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Halfopped "+std::string(dest->nick)+" on "+std::string(channel->name));
 141                                                                 return ACR_ALLOW;
 142                                                         }
 143                                                         else return ACR_DEFAULT;
 144                                                 break;
 145                                                 case AC_DEHALFOP:
 146                                                         if (CanOverride(source,"MODEDEHALFOP"))
 147                                                         {
 148                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Dehalfopped "+std::string(dest->nick)+" on "+std::string(channel->name));
 149                                                                 return ACR_ALLOW;
 150                                                         }
 151                                                         else return ACR_DEFAULT;
 152                                                 break;
 153                                         }
 154                                 }
 155                         }
 156                         if (CanOverride(source,"OTHERMODE"))
 157                         {
 158                                 return ACR_ALLOW;
 159                         }
 160                         else
 161                         {
 162                                 return ACR_DEFAULT;
 163                         }
 164                 }
 165
 166                 return ACR_DEFAULT;
 167         }
 168
 169         virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname)
 170         {
 171                 if (strchr(user->modes,'o'))
 172                 {
 173                         if (chan)
 174                         {
 175                                 if ((chan->binarymodes & CM_INVITEONLY) && (CanOverride(user,"INVITE")))
 176                                 {
 177                                         if (NoisyOverride)
 178                                         {
 179                                                 irc::string x = chan->name;
 180                                                 if (!user->IsInvited(x))
 181                                                 {
 182                                                         WriteChannelWithServ((char*)Srv->GetServerName().c_str(),chan,"NOTICE %s :%s invited himself into the channel",cname,user->nick);
 183                                                 }
 184                                         }
 185                                         Srv->SendOpers("*** "+std::string(user->nick)+" used operoverride to bypass +i on "+std::string(cname));
 186                                         return -1;
 187                                 }
 188                                 if ((chan->key[0]) && (CanOverride(user,"KEY")))
 189                                 {
 190                                         if (NoisyOverride)
 191                                                 WriteChannelWithServ((char*)Srv->GetServerName().c_str(),chan,"NOTICE %s :%s bypassed the channel key",cname,user->nick);
 192                                         Srv->SendOpers("*** "+std::string(user->nick)+" used operoverride to bypass +k on "+std::string(cname));
 193                                         return -1;
 194                                 }
 195                                 if ((chan->limit >= Srv->CountUsers(chan)) && (CanOverride(user,"LIMIT")))
 196                                 {
 197                                         if (NoisyOverride)
 198                                                 WriteChannelWithServ((char*)Srv->GetServerName().c_str(),chan,"NOTICE %s :%s passed through your channel limit",cname,user->nick);
 199                                         Srv->SendOpers("*** "+std::string(user->nick)+" used operoverride to bypass +l on "+std::string(cname));
 200                                         return -1;
 201                                 }
 202
 203                                 if (CanOverride(user,"BANWALK"))
 204                                 {
 205                                         // other join
 206                                         return -1;
 207                                 }
 208                         }
 209                 }
 210                 return 0;
 211         }
 212
 213         virtual ~ModuleOverride()
 214         {
 215                 delete Conf;
 216         }
 217
 218         virtual Version GetVersion()
 219         {
 220                 return Version(1,0,0,1,VF_VENDOR);
 221         }
 222 };
 223
 224
 225 class ModuleOverrideFactory : public ModuleFactory
 226 {
 227  public:
 228         ModuleOverrideFactory()
 229         {
 230         }
 231
 232         ~ModuleOverrideFactory()
 233         {
 234         }
 235
 236         virtual Module * CreateModule(Server* Me)
 237         {
 238                 return new ModuleOverride(Me);
 239         }
 240
 241 };
 242
 243
 244 extern "C" void * init_module( void )
 245 {
 246         return new ModuleOverrideFactory;
 247 }
 248