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 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         virtual void On005Numeric(std::string &output)
  59         {
  60                 output = output + std::string(" OVERRIDE");
  61         }
  62
  63         virtual bool CanOverride(userrec* source, char* token)
  64         {
  65                 // checks to see if the oper's type has <type:override>
  66                 for (int j =0; j < Conf->Enumerate("type"); j++)
  67                 {
  68                         std::string typen = Conf->ReadValue("type","name",j);
  69                         if (!strcmp(typen.c_str(),source->oper))
  70                         {
  71                                 // its defined, return its value as a boolean for if the token is set
  72                                 std::string tokenlist = Conf->ReadValue("type","override",j);
  73                                 return strstr(tokenlist.c_str(),token);
  74                         }
  75                 }
  76                 // its not defined at all, count as false
  77                 return false;
  78         }
  79
  80         virtual int OnAccessCheck(userrec* source,userrec* dest,chanrec* channel,int access_type)
  81         {
  82                 if (strchr(source->modes,'o'))
  83                 {
  84                         if ((Srv) && (source) && (channel))
  85                         {
  86                                 // Fix by brain - allow the change if they arent on channel - rely on boolean short-circuit
  87                                 // to not check the other items in the statement if they arent on the channel
  88                                 if ((!Srv->IsOnChannel(source,channel)) || ((Srv->ChanMode(source,channel) != "%") && (Srv->ChanMode(source,channel) != "@")))
  89                                 {
  90                                         switch (access_type)
  91                                         {
  92                                                 case AC_KICK:
  93                                                         if (CanOverride(source,"KICK"))
  94                                                         {
  95                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Kicked "+std::string(dest->nick)+" on "+std::string(channel->name));
  96                                                                 return ACR_ALLOW;
  97                                                         }
  98                                                         else return ACR_DEFAULT;
  99                                                 break;
 100                                                 case AC_DEOP:
 101                                                         if (CanOverride(source,"MODEOP"))
 102                                                         {
 103                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Deopped "+std::string(dest->nick)+" on "+std::string(channel->name));
 104                                                                 return ACR_ALLOW;
 105                                                         }
 106                                                         else return ACR_DEFAULT;
 107                                                 break;
 108                                                 case AC_OP:
 109                                                         if (CanOverride(source,"MODEDEOP"))
 110                                                         {
 111                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Opped "+std::string(dest->nick)+" on "+std::string(channel->name));
 112                                                                 return ACR_ALLOW;
 113                                                         }
 114                                                         else return ACR_DEFAULT;
 115                                                 break;
 116                                                 case AC_VOICE:
 117                                                         if (CanOverride(source,"MODEVOICE"))
 118                                                         {
 119                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Voiced "+std::string(dest->nick)+" on "+std::string(channel->name));
 120                                                                 return ACR_ALLOW;
 121                                                         }
 122                                                         else return ACR_DEFAULT;
 123                                                 break;
 124                                                 case AC_DEVOICE:
 125                                                         if (CanOverride(source,"MODEDEVOICE"))
 126                                                         {
 127                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Devoiced "+std::string(dest->nick)+" on "+std::string(channel->name));
 128                                                                 return ACR_ALLOW;
 129                                                         }
 130                                                         else return ACR_DEFAULT;
 131                                                 break;
 132                                                 case AC_HALFOP:
 133                                                         if (CanOverride(source,"MODEHALFOP"))
 134                                                         {
 135                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Halfopped "+std::string(dest->nick)+" on "+std::string(channel->name));
 136                                                                 return ACR_ALLOW;
 137                                                         }
 138                                                         else return ACR_DEFAULT;
 139                                                 break;
 140                                                 case AC_DEHALFOP:
 141                                                         if (CanOverride(source,"MODEDEHALFOP"))
 142                                                         {
 143                                                                 Srv->SendOpers("*** NOTICE: "+std::string(source->nick)+" Override-Dehalfopped "+std::string(dest->nick)+" on "+std::string(channel->name));
 144                                                                 return ACR_ALLOW;
 145                                                         }
 146                                                         else return ACR_DEFAULT;
 147                                                 break;
 148                                         }
 149                                 }
 150                         }
 151                         if (CanOverride(source,"OTHERMODE"))
 152                         {
 153                                 return ACR_ALLOW;
 154                         }
 155                         else
 156                         {
 157                                 return ACR_DEFAULT;
 158                         }
 159                 }
 160
 161                 return ACR_DEFAULT;
 162         }
 163
 164         virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname)
 165         {
 166                 if (strchr(user->modes,'o'))
 167                 {
 168                         if (chan)
 169                         {
 170                                 if ((chan->binarymodes & CM_INVITEONLY) && (CanOverride(user,"INVITE")))
 171                                 {
 172                                         if (NoisyOverride)
 173                                         {
 174                                                 if (!user->IsInvited(chan->name))
 175                                                 {
 176                                                         WriteChannelWithServ((char*)Srv->GetServerName().c_str(),chan,"NOTICE %s :%s invited himself into the channel",cname,user->nick);
 177                                                 }
 178                                         }
 179                                         Srv->SendOpers("*** "+std::string(user->nick)+" used operoverride to bypass +i on "+std::string(cname));
 180                                         return -1;
 181                                 }
 182                                 if ((chan->key[0]) && (CanOverride(user,"KEY")))
 183                                 {
 184                                         if (NoisyOverride)
 185                                                 WriteChannelWithServ((char*)Srv->GetServerName().c_str(),chan,"NOTICE %s :%s bypassed the channel key",cname,user->nick);
 186                                         Srv->SendOpers("*** "+std::string(user->nick)+" used operoverride to bypass +k on "+std::string(cname));
 187                                         return -1;
 188                                 }
 189                                 if ((chan->limit >= Srv->CountUsers(chan)) && (CanOverride(user,"LIMIT")))
 190                                 {
 191                                         if (NoisyOverride)
 192                                                 WriteChannelWithServ((char*)Srv->GetServerName().c_str(),chan,"NOTICE %s :%s passed through your channel limit",cname,user->nick);
 193                                         Srv->SendOpers("*** "+std::string(user->nick)+" used operoverride to bypass +l on "+std::string(cname));
 194                                         return -1;
 195                                 }
 196
 197                                 if (CanOverride(user,"BANWALK"))
 198                                 {
 199                                         // other join
 200                                         return -1;
 201                                 }
 202                         }
 203                 }
 204                 return 0;
 205         }
 206
 207         virtual ~ModuleOverride()
 208         {
 209                 delete Conf;
 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(Server* Me)
 231         {
 232                 return new ModuleOverride(Me);
 233         }
 234
 235 };
 236
 237
 238 extern "C" void * init_module( void )
 239 {
 240         return new ModuleOverrideFactory;
 241 }
 242