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