src/modules/m_silence.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 <string>
  19 #include <vector>
  20 #include "users.h"
  21 #include "channels.h"
  22 #include "modules.h"
  23 #include "helperfuncs.h"
  24 #include "hashcomp.h"
  25
  26 /* $ModDesc: Provides support for the /SILENCE command */
  27
  28
  29 // This typedef holds a silence list. Each user may or may not have a
  30 // silencelist, if a silence list is empty for a user, he/she does not
  31 // have one of these structures associated with their user record.
  32 typedef std::vector<std::string> silencelist;
  33
  34
  35 void handle_silence(char **parameters, int pcnt, userrec *user)
  36 {
  37         if (!pcnt)
  38         {
  39                 // no parameters, show the current silence list.
  40                 // Use Extensible::GetExt to fetch the silence list
  41                 silencelist* sl = (silencelist*)user->GetExt("silence_list");
  42                 // if the user has a silence list associated with their user record, show it
  43                 if (sl)
  44                 {
  45                         for (silencelist::const_iterator c = sl->begin(); c < sl->end(); c++)
  46                         {
  47                                 WriteServ(user->fd,"271 %s %s %s!*@*",user->nick, user->nick,c->c_str());
  48                         }
  49                 }
  50                 WriteServ(user->fd,"272 %s :End of Silence List",user->nick);
  51         }
  52         else if (pcnt > 0)
  53         {
  54                 // one or more parameters, add or delete entry from the list (only the first parameter is used)
  55                 char *nick = parameters[0];
  56                 if (nick[0] == '-')
  57                 {
  58                         // removing an item from the list
  59                         nick++;
  60                         // fetch their silence list
  61                         silencelist* sl = (silencelist*)user->GetExt("silence_list");
  62                         // does it contain any entries and does it exist?
  63                         if (sl)
  64                         {
  65                                 if (sl->size())
  66                                 {
  67                                         for (silencelist::iterator i = sl->begin(); i != sl->end(); i++)
  68                                         {
  69                                                 // search through for the item
  70                                                 irc::string listitem = i->c_str();
  71                                                 irc::string target = nick;
  72                                                 if (listitem == target)
  73                                                 {
  74                                                         sl->erase(i);
  75                                                         WriteServ(user->fd,"950 %s %s :Removed %s!*@* from silence list",user->nick, user->nick,nick);
  76                                                         // we have modified the vector from within a loop, we must now bail out
  77                                                         return;
  78                                                 }
  79                                         }
  80                                 }
  81                                 if (!sl->size())
  82                                 {
  83                                         // tidy up -- if a user's list is empty, theres no use having it
  84                                         // hanging around in the user record.
  85                                         delete sl;
  86                                         user->Shrink("silence_list");
  87                                 }
  88                         }
  89                 }
  90                 else if (nick[0] == '+')
  91                 {
  92                         nick++;
  93                         // fetch the user's current silence list
  94                         silencelist* sl = (silencelist*)user->GetExt("silence_list");
  95                         // what, they dont have one??? WE'RE ALL GONNA DIE! ...no, we just create an empty one.
  96                         if (!sl)
  97                         {
  98                                 sl = new silencelist;
  99                                 user->Extend(std::string("silence_list"),(char*)sl);
 100                         }
 101                         // add the nick to it -- silence only takes nicks for some reason even though its list shows masks
 102                         for (silencelist::iterator n = sl->begin(); n != sl->end();  n++)
 103                         {
 104                                 irc::string listitem = n->c_str();
 105                                 irc::string target = nick;
 106                                 if (listitem == target)
 107                                 {
 108                                         WriteServ(user->fd,"952 %s %s :%s is already on your silence list",user->nick, user->nick,nick);
 109                                         return;
 110                                 }
 111                         }
 112                         sl->push_back(std::string(nick));
 113                         WriteServ(user->fd,"951 %s %s :Added %s!*@* to silence list",user->nick, user->nick,nick);
 114                         return;
 115                 }
 116         }
 117         return;
 118 }
 119
 120
 121 class ModuleSilence : public Module
 122 {
 123         Server *Srv;
 124  public:
 125
 126         ModuleSilence()
 127         {
 128                 Srv = new Server;
 129                 Srv->AddCommand("SILENCE",handle_silence,0,0,"m_silence.so");
 130         }
 131
 132         virtual void OnUserQuit(userrec* user)
 133         {
 134                 // when the user quits tidy up any silence list they might have just to keep things tidy
 135                 // and to prevent a HONKING BIG MEMORY LEAK!
 136                 silencelist* sl = (silencelist*)user->GetExt("silence_list");
 137                 if (sl)
 138                 {
 139                         delete sl;
 140                         user->Shrink("silence_list");
 141                 }
 142         }
 143
 144         virtual void On005Numeric(std::string &output)
 145         {
 146                 // we don't really have a limit...
 147                 output = output + " SILENCE=999";
 148         }
 149
 150         virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text)
 151         {
 152                 // im not sure how unreal's silence operates but ours is sensible. It blocks notices and
 153                 // privmsgs from people on the silence list, directed privately at the user.
 154                 // channel messages are unaffected (ever tried to follow the flow of conversation in
 155                 // a channel when you've set an ignore on the two most talkative people?)
 156                 if (target_type == TYPE_USER)
 157                 {
 158                         userrec* u = (userrec*)dest;
 159                         silencelist* sl = (silencelist*)u->GetExt("silence_list");
 160                         if (sl)
 161                         {
 162                                 for (silencelist::const_iterator c = sl->begin(); c != sl->end(); c++)
 163                                 {
 164                                         irc::string listitem = c->c_str();
 165                                         irc::string target = user->nick;
 166                                         if (listitem == target)
 167                                         {
 168                                                 return 1;
 169                                         }
 170                                 }
 171                         }
 172                 }
 173                 return 0;
 174         }
 175
 176         virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text)
 177         {
 178                 if (target_type == TYPE_USER)
 179                 {
 180                         userrec* u = (userrec*)dest;
 181                         silencelist* sl = (silencelist*)u->GetExt("silence_list");
 182                         if (sl)
 183                         {
 184                                 for (silencelist::const_iterator c = sl->begin(); c != sl->end(); c++)
 185                                 {
 186                                         irc::string listitem = c->c_str();
 187                                         irc::string target = user->nick;
 188                                         if (listitem == target)
 189                                         {
 190                                                 return 1;
 191                                         }
 192                                 }
 193                         }
 194                 }
 195                 return 0;
 196         }
 197
 198         virtual ~ModuleSilence()
 199         {
 200                 delete Srv;
 201         }
 202
 203         virtual Version GetVersion()
 204         {
 205                 return Version(1,0,0,1,VF_VENDOR);
 206         }
 207 };
 208
 209
 210 class ModuleSilenceFactory : public ModuleFactory
 211 {
 212  public:
 213         ModuleSilenceFactory()
 214         {
 215         }
 216
 217         ~ModuleSilenceFactory()
 218         {
 219         }
 220
 221         virtual Module * CreateModule()
 222         {
 223                 return new ModuleSilence;
 224         }
 225
 226 };
 227
 228
 229 extern "C" void * init_module( void )
 230 {
 231         return new ModuleSilenceFactory;
 232 }
 233