src/modules/m_stripcolor.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *            the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 #include "users.h"
  15 #include "channels.h"
  16 #include "modules.h"
  17 #include "inspircd.h"
  18
  19 /* $ModDesc: Provides channel +S mode (strip ansi colour) */
  20
  21 /** Handles channel mode +S
  22  */
  23 class ChannelStripColor : public ModeHandler
  24 {
  25  public:
  26         ChannelStripColor(InspIRCd* Instance) : ModeHandler(Instance, 'S', 0, 0, false, MODETYPE_CHANNEL, false) { }
  27
  28         ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
  29         {
  30                 if (adding)
  31                 {
  32                         if (!channel->IsModeSet('S'))
  33                         {
  34                                 channel->SetMode('S',true);
  35                                 return MODEACTION_ALLOW;
  36                         }
  37                 }
  38                 else
  39                 {
  40                         if (channel->IsModeSet('S'))
  41                         {
  42                                 channel->SetMode('S',false);
  43                                 return MODEACTION_ALLOW;
  44                         }
  45                 }
  46
  47                 return MODEACTION_DENY;
  48         }
  49 };
  50
  51 /** Handles user mode +S
  52  */
  53 class UserStripColor : public ModeHandler
  54 {
  55  public:
  56         UserStripColor(InspIRCd* Instance) : ModeHandler(Instance, 'S', 0, 0, false, MODETYPE_USER, false) { }
  57
  58         ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
  59         {
  60                 /* Only opers can change other users modes */
  61                 if ((source != dest) && (!*source->oper))
  62                         return MODEACTION_DENY;
  63
  64                 if (adding)
  65                 {
  66                         if (!dest->IsModeSet('S'))
  67                         {
  68                                 dest->SetMode('S',true);
  69                                 return MODEACTION_ALLOW;
  70                         }
  71                 }
  72                 else
  73                 {
  74                         if (dest->IsModeSet('S'))
  75                         {
  76                                 dest->SetMode('S',false);
  77                                 return MODEACTION_ALLOW;
  78                         }
  79                 }
  80
  81                 return MODEACTION_DENY;
  82         }
  83 };
  84
  85
  86 class ModuleStripColor : public Module
  87 {
  88
  89  ConfigReader *Conf, *MyConf;
  90  ChannelStripColor *csc;
  91  UserStripColor *usc;
  92
  93  public:
  94         ModuleStripColor(InspIRCd* Me)
  95                 : Module::Module(Me)
  96         {
  97
  98
  99                 usc = new UserStripColor(ServerInstance);
 100                 csc = new ChannelStripColor(ServerInstance);
 101
 102                 if (!ServerInstance->AddMode(usc, 'S') || !ServerInstance->AddMode(csc, 'S'))
 103                         throw ModuleException("Could not add new modes!");
 104         }
 105
 106         void Implements(char* List)
 107         {
 108                 List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = 1;
 109         }
 110
 111         virtual ~ModuleStripColor()
 112         {
 113                 ServerInstance->Modes->DelMode(usc);
 114                 ServerInstance->Modes->DelMode(csc);
 115                 DELETE(usc);
 116                 DELETE(csc);
 117         }
 118
 119         // ANSI colour stripping based on C example by Doc (Peter Wood)
 120         virtual void ReplaceLine(std::string &sentence)
 121         {
 122                 int i, a, len, remove;
 123                 len = sentence.length();
 124
 125                 for (i = 0; i < len; i++)
 126                 {
 127                         remove = 0;
 128
 129                         switch (sentence[i])
 130                         {
 131                                 case 2:
 132                                 case 15:
 133                                 case 22:
 134                                 case 21:
 135                                 case 31:
 136                                         remove++;
 137                                 break;
 138
 139                                 case 3:
 140                                         remove = 1;
 141
 142                                         if (isdigit(sentence[i + remove]))
 143                                                 remove++;
 144
 145                                         if (isdigit(sentence[i + remove]))
 146                                                 remove++;
 147
 148                                         if (sentence[i + remove] == ',')
 149                                         {
 150                                                 remove += 2;
 151
 152                                                 if (isdigit(sentence[i + remove]))
 153                                                         remove++;
 154                                         }
 155                                 break;
 156                         }
 157
 158                         if (remove != 0)
 159                         {
 160                                 len -= remove;
 161
 162                                 for (a = i; a <= len; a++)
 163                                         sentence[a] = sentence[a + remove];
 164                                 i--;
 165                         }
 166                 }
 167         }
 168
 169         virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
 170         {
 171                 if (!IS_LOCAL(user))
 172                         return 0;
 173
 174                 bool active = false;
 175                 if (target_type == TYPE_USER)
 176                 {
 177                         userrec* t = (userrec*)dest;
 178                         active = t->IsModeSet('S');
 179                 }
 180                 else if (target_type == TYPE_CHANNEL)
 181                 {
 182                         chanrec* t = (chanrec*)dest;
 183                         active = t->IsModeSet('S');
 184                 }
 185                 if (active)
 186                 {
 187                         this->ReplaceLine(text);
 188                 }
 189                 return 0;
 190         }
 191
 192         virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
 193         {
 194                 return OnUserPreMessage(user,dest,target_type,text,status,exempt_list);
 195         }
 196
 197         virtual Version GetVersion()
 198         {
 199                 return Version(1, 1, 0, 0, VF_COMMON | VF_VENDOR, API_VERSION);
 200         }
 201
 202 };
 203
 204 // stuff down here is the module-factory stuff. For basic modules you can ignore this.
 205
 206 class ModuleStripColorFactory : public ModuleFactory
 207 {
 208  public:
 209         ModuleStripColorFactory()
 210         {
 211         }
 212
 213         ~ModuleStripColorFactory()
 214         {
 215         }
 216
 217         virtual Module * CreateModule(InspIRCd* Me)
 218         {
 219                 return new ModuleStripColor(Me);
 220         }
 221
 222 };
 223
 224
 225 extern "C" void * init_module( void )
 226 {
 227         return new ModuleStripColorFactory;
 228 }
 229