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