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 "inspircd.h"
  15 #include "users.h"
  16 #include "channels.h"
  17 #include "modules.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)
  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         bool AllowChanOps;
  89         ChannelStripColor *csc;
  90         UserStripColor *usc;
  91
  92  public:
  93         ModuleStripColor(InspIRCd* Me) : Module(Me)
  94         {
  95                 usc = new UserStripColor(ServerInstance);
  96                 csc = new ChannelStripColor(ServerInstance);
  97
  98                 if (!ServerInstance->AddMode(usc, 'S') || !ServerInstance->AddMode(csc, 'S'))
  99                         throw ModuleException("Could not add new modes!");
 100         }
 101
 102         void Implements(char* List)
 103         {
 104                 List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = 1;
 105         }
 106
 107         virtual ~ModuleStripColor()
 108         {
 109                 ServerInstance->Modes->DelMode(usc);
 110                 ServerInstance->Modes->DelMode(csc);
 111                 DELETE(usc);
 112                 DELETE(csc);
 113         }
 114
 115         virtual void ReplaceLine(std::string &sentence)
 116         {
 117                 /* refactor this completely due to SQUIT bug since the old code would strip last char and replace with \0 --peavey */
 118                 int seq = 0;
 119                 std::string::iterator i,safei;
 120                 for (i = sentence.begin(); i != sentence.end(); ++i)
 121                 {
 122                         if (((*i == 31) || (*i == 3)))
 123                         {
 124                                 seq = 1;
 125                         }
 126                         else if (seq && ( (*i >= '0') && (*i <= '9') || (*i == ',') ) )
 127                         {
 128                                 seq++;
 129                                 if ( (seq <= 4) && (*i == ',') )
 130                                         seq = 1;
 131                                 else if (seq > 3)
 132                                         seq = 0;
 133                         }
 134                         else
 135                                 seq = 0;
 136
 137                         if (seq)
 138                         {
 139                                 safei = i;
 140                                 --i;
 141                                 sentence.erase(safei);
 142                         }
 143                 }
 144         }
 145
 146         virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
 147         {
 148                 if (!IS_LOCAL(user))
 149                         return 0;
 150
 151                 bool active = false;
 152                 if (target_type == TYPE_USER)
 153                 {
 154                         userrec* t = (userrec*)dest;
 155                         active = t->IsModeSet('S');
 156                 }
 157                 else if (target_type == TYPE_CHANNEL)
 158                 {
 159                         chanrec* t = (chanrec*)dest;
 160
 161                         // check if we allow ops to bypass filtering, if we do, check if they're opped accordingly.
 162                         // note: short circut logic here, don't wreck it. -- w00t
 163                         if (!CHANOPS_EXEMPT(ServerInstance, 'S') || CHANOPS_EXEMPT(ServerInstance, 'S') && t->GetStatus(user) != STATUS_OP)
 164                                 active = t->IsModeSet('S');
 165                 }
 166
 167                 if (active)
 168                 {
 169                         this->ReplaceLine(text);
 170                 }
 171
 172                 return 0;
 173         }
 174
 175         virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
 176         {
 177                 return OnUserPreMessage(user,dest,target_type,text,status,exempt_list);
 178         }
 179
 180         virtual Version GetVersion()
 181         {
 182                 return Version(1, 1, 0, 0, VF_COMMON | VF_VENDOR, API_VERSION);
 183         }
 184
 185 };
 186
 187 MODULE_INIT(ModuleStripColor);