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 using namespace std;
  18
  19 #include <stdio.h>
  20 #include <string>
  21 #include <vector>
  22 #include "users.h"
  23 #include "channels.h"
  24 #include "modules.h"
  25 #include "helperfuncs.h"
  26 #include "hashcomp.h"
  27
  28 /* $ModDesc: Provides support for the /SILENCE command */
  29
  30
  31 // This typedef holds a silence list. Each user may or may not have a
  32 // silencelist, if a silence list is empty for a user, he/she does not
  33 // have one of these structures associated with their user record.
  34 typedef std::vector<std::string> silencelist;
  35
  36
  37 void handle_silence(char **parameters, int pcnt, userrec *user)
  38 {
  39         if (!pcnt)
  40         {
  41                 // no parameters, show the current silence list.
  42                 // Use Extensible::GetExt to fetch the silence list
  43                 silencelist* sl = (silencelist*)user->GetExt("silence_list");
  44                 // if the user has a silence list associated with their user record, show it
  45                 if (sl)
  46                 {
  47                         for (silencelist::const_iterator c = sl->begin(); c < sl->end(); c++)
  48                         {
  49                                 WriteServ(user->fd,"271 %s %s %s!*@*",user->nick, user->nick,c->c_str());
  50                         }
  51                 }
  52                 WriteServ(user->fd,"272 %s :End of Silence List",user->nick);
  53         }
  54         else if (pcnt > 0)
  55         {
  56                 // one or more parameters, add or delete entry from the list (only the first parameter is used)
  57                 char *nick = parameters[0];
  58                 if (nick[0] == '-')
  59                 {
  60                         // removing an item from the list
  61                         nick++;
  62                         // fetch their silence list
  63                         silencelist* sl = (silencelist*)user->GetExt("silence_list");
  64                         // does it contain any entries and does it exist?
  65                         if (sl)
  66                         {
  67                                 if (sl->size())
  68                                 {
  69                                         for (silencelist::iterator i = sl->begin(); i != sl->end(); i++)
  70                                         {
  71                                                 // search through for the item
  72                                                 irc::string listitem = i->c_str();
  73                                                 irc::string target = nick;
  74                                                 if (listitem == target)
  75                                                 {
  76                                                         sl->erase(i);
  77                                                         WriteServ(user->fd,"950 %s %s :Removed %s!*@* from silence list",user->nick, user->nick,nick);
  78                                                         // we have modified the vector from within a loop, we must now bail out
  79                                                         return;
  80                                                 }
  81                                         }
  82                                 }
  83                                 if (!sl->size())
  84                                 {
  85                                         // tidy up -- if a user's list is empty, theres no use having it
  86                                         // hanging around in the user record.
  87                                         delete sl;
  88                                         user->Shrink("silence_list");
  89                                 }
  90                         }
  91                 }
  92                 else if (nick[0] == '+')
  93                 {
  94                         nick++;
  95                         // fetch the user's current silence list
  96                         silencelist* sl = (silencelist*)user->GetExt("silence_list");
  97                         // what, they dont have one??? WE'RE ALL GONNA DIE! ...no, we just create an empty one.
  98                         if (!sl)
  99                         {
 100                                 sl = new silencelist;
 101                                 user->Extend(std::string("silence_list"),(char*)sl);
 102                         }
 103                         // add the nick to it -- silence only takes nicks for some reason even though its list shows masks
 104                         for (silencelist::iterator n = sl->begin(); n != sl->end();  n++)
 105                         {
 106                                 irc::string listitem = n->c_str();
 107                                 irc::string target = nick;
 108                                 if (listitem == target)
 109                                 {
 110                                         WriteServ(user->fd,"952 %s %s :%s is already on your silence list",user->nick, user->nick,nick);
 111                                         return;
 112                                 }
 113                         }
 114                         sl->push_back(std::string(nick));
 115                         WriteServ(user->fd,"951 %s %s :Added %s!*@* to silence list",user->nick, user->nick,nick);
 116                         return;
 117                 }
 118         }
 119         return;
 120 }
 121
 122
 123 class ModuleSilence : public Module
 124 {
 125         Server *Srv;
 126  public:
 127
 128         ModuleSilence()
 129         {
 130                 Srv = new Server;
 131                 Srv->AddCommand("SILENCE",handle_silence,0,0,"m_silence.so");
 132         }
 133
 134         virtual void OnUserQuit(userrec* user, std::string reason)
 135         {
 136                 // when the user quits tidy up any silence list they might have just to keep things tidy
 137                 // and to prevent a HONKING BIG MEMORY LEAK!
 138                 silencelist* sl = (silencelist*)user->GetExt("silence_list");
 139                 if (sl)
 140                 {
 141                         delete sl;
 142                         user->Shrink("silence_list");
 143                 }
 144         }
 145
 146         virtual void On005Numeric(std::string &output)
 147         {
 148                 // we don't really have a limit...
 149                 output = output + " SILENCE=999";
 150         }
 151
 152         virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text)
 153         {
 154                 // im not sure how unreal's silence operates but ours is sensible. It blocks notices and
 155                 // privmsgs from people on the silence list, directed privately at the user.
 156                 // channel messages are unaffected (ever tried to follow the flow of conversation in
 157                 // a channel when you've set an ignore on the two most talkative people?)
 158                 if (target_type == TYPE_USER)
 159                 {
 160                         userrec* u = (userrec*)dest;
 161                         silencelist* sl = (silencelist*)u->GetExt("silence_list");
 162                         if (sl)
 163                         {
 164                                 for (silencelist::const_iterator c = sl->begin(); c != sl->end(); c++)
 165                                 {
 166                                         irc::string listitem = c->c_str();
 167                                         irc::string target = user->nick;
 168                                         if (listitem == target)
 169                                         {
 170                                                 return 1;
 171                                         }
 172                                 }
 173                         }
 174                 }
 175                 return 0;
 176         }
 177
 178         virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text)
 179         {
 180                 if (target_type == TYPE_USER)
 181                 {
 182                         userrec* u = (userrec*)dest;
 183                         silencelist* sl = (silencelist*)u->GetExt("silence_list");
 184                         if (sl)
 185                         {
 186                                 for (silencelist::const_iterator c = sl->begin(); c != sl->end(); c++)
 187                                 {
 188                                         irc::string listitem = c->c_str();
 189                                         irc::string target = user->nick;
 190                                         if (listitem == target)
 191                                         {
 192                                                 return 1;
 193                                         }
 194                                 }
 195                         }
 196                 }
 197                 return 0;
 198         }
 199
 200         virtual ~ModuleSilence()
 201         {
 202                 delete Srv;
 203         }
 204
 205         virtual Version GetVersion()
 206         {
 207                 return Version(1,0,0,1,VF_VENDOR);
 208         }
 209 };
 210
 211
 212 class ModuleSilenceFactory : public ModuleFactory
 213 {
 214  public:
 215         ModuleSilenceFactory()
 216         {
 217         }
 218
 219         ~ModuleSilenceFactory()
 220         {
 221         }
 222
 223         virtual Module * CreateModule()
 224         {
 225                 return new ModuleSilence;
 226         }
 227
 228 };
 229
 230
 231 extern "C" void * init_module( void )
 232 {
 233         return new ModuleSilenceFactory;
 234 }
 235