src/modules/m_silence.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd is copyright (C) 2002-2006 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 class cmd_silence : public command_t
  37 {
  38  public:
  39         cmd_silence() : command_t("SILENCE", 0, 0)
  40         {
  41                 this->source = "m_silence.so";
  42         }
  43
  44         void Handle (const char** parameters, int pcnt, userrec *user)
  45         {
  46                 if (!pcnt)
  47                 {
  48                         // no parameters, show the current silence list.
  49                         // Use Extensible::GetExt to fetch the silence list
  50                         silencelist* sl;
  51                         user->GetExt("silence_list", sl);
  52                         // if the user has a silence list associated with their user record, show it
  53                         if (sl)
  54                         {
  55                                 for (silencelist::const_iterator c = sl->begin(); c < sl->end(); c++)
  56                                 {
  57                                         WriteServ(user->fd,"271 %s %s %s!*@*",user->nick, user->nick,c->c_str());
  58                                 }
  59                         }
  60                         WriteServ(user->fd,"272 %s :End of Silence List",user->nick);
  61                 }
  62                 else if (pcnt > 0)
  63                 {
  64                         // one or more parameters, add or delete entry from the list (only the first parameter is used)
  65                         const char *nick = parameters[0];
  66                         if (nick[0] == '-')
  67                         {
  68                                 // removing an item from the list
  69                                 nick++;
  70                                 // fetch their silence list
  71                                 silencelist* sl;
  72                                 user->GetExt("silence_list", sl);
  73                                 // does it contain any entries and does it exist?
  74                                 if (sl)
  75                                 {
  76                                         if (sl->size())
  77                                         {
  78                                                 for (silencelist::iterator i = sl->begin(); i != sl->end(); i++)
  79                                                 {
  80                                                         // search through for the item
  81                                                         irc::string listitem = i->c_str();
  82                                                         irc::string target = nick;
  83                                                         if (listitem == target)
  84                                                         {
  85                                                                 sl->erase(i);
  86                                                                 WriteServ(user->fd,"950 %s %s :Removed %s!*@* from silence list",user->nick, user->nick,nick);
  87                                                                 // we have modified the vector from within a loop, we must now bail out
  88                                                                 return;
  89                                                         }
  90                                                 }
  91                                         }
  92                                         if (!sl->size())
  93                                         {
  94                                                 // tidy up -- if a user's list is empty, theres no use having it
  95                                                 // hanging around in the user record.
  96                                                 DELETE(sl);
  97                                                 user->Shrink("silence_list");
  98                                         }
  99                                 }
 100                         }
 101                         else if (nick[0] == '+')
 102                         {
 103                                 nick++;
 104                                 // fetch the user's current silence list
 105                                 silencelist* sl;
 106                                 user->GetExt("silence_list", sl);
 107                                 // what, they dont have one??? WE'RE ALL GONNA DIE! ...no, we just create an empty one.
 108                                 if (!sl)
 109                                 {
 110                                         sl = new silencelist;
 111                                         user->Extend(std::string("silence_list"), sl);
 112                                 }
 113                                 // add the nick to it -- silence only takes nicks for some reason even though its list shows masks
 114                                 for (silencelist::iterator n = sl->begin(); n != sl->end();  n++)
 115                                 {
 116                                         irc::string listitem = n->c_str();
 117                                         irc::string target = nick;
 118                                         if (listitem == target)
 119                                         {
 120                                                 WriteServ(user->fd,"952 %s %s :%s is already on your silence list",user->nick, user->nick,nick);
 121                                                 return;
 122                                         }
 123                                 }
 124                                 sl->push_back(std::string(nick));
 125                                 WriteServ(user->fd,"951 %s %s :Added %s!*@* to silence list",user->nick, user->nick,nick);
 126                                 return;
 127                         }
 128                 }
 129                 return;
 130         }
 131 };
 132
 133 class ModuleSilence : public Module
 134 {
 135         Server *Srv;
 136         cmd_silence* mycommand;
 137  public:
 138
 139         ModuleSilence(Server* Me)
 140                 : Module::Module(Me)
 141         {
 142                 Srv = Me;
 143                 mycommand = new cmd_silence();
 144                 Srv->AddCommand(mycommand);
 145         }
 146
 147         void Implements(char* List)
 148         {
 149                 List[I_OnUserQuit] = List[I_On005Numeric] = List[I_OnUserPreNotice] = List[I_OnUserPreMessage] = 1;
 150         }
 151
 152         virtual void OnUserQuit(userrec* user, const std::string &reason)
 153         {
 154                 // when the user quits tidy up any silence list they might have just to keep things tidy
 155                 // and to prevent a HONKING BIG MEMORY LEAK!
 156                 silencelist* sl;
 157                 user->GetExt("silence_list", sl);
 158                 if (sl)
 159                 {
 160                         DELETE(sl);
 161                         user->Shrink("silence_list");
 162                 }
 163         }
 164
 165         virtual void On005Numeric(std::string &output)
 166         {
 167                 // we don't really have a limit...
 168                 output = output + " SILENCE=999";
 169         }
 170
 171         virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status)
 172         {
 173                 // im not sure how unreal's silence operates but ours is sensible. It blocks notices and
 174                 // privmsgs from people on the silence list, directed privately at the user.
 175                 // channel messages are unaffected (ever tried to follow the flow of conversation in
 176                 // a channel when you've set an ignore on the two most talkative people?)
 177                 if (target_type == TYPE_USER)
 178                 {
 179                         userrec* u = (userrec*)dest;
 180                         silencelist* sl;
 181                         u->GetExt("silence_list", sl);
 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 int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status)
 199         {
 200                 return OnUserPreNotice(user,dest,target_type,text,status);
 201         }
 202
 203         virtual ~ModuleSilence()
 204         {
 205         }
 206
 207         virtual Version GetVersion()
 208         {
 209                 return Version(1,0,0,1,VF_VENDOR);
 210         }
 211 };
 212
 213
 214 class ModuleSilenceFactory : public ModuleFactory
 215 {
 216  public:
 217         ModuleSilenceFactory()
 218         {
 219         }
 220
 221         ~ModuleSilenceFactory()
 222         {
 223         }
 224
 225         virtual Module * CreateModule(Server* Me)
 226         {
 227                 return new ModuleSilence(Me);
 228         }
 229
 230 };
 231
 232
 233 extern "C" void * init_module( void )
 234 {
 235         return new ModuleSilenceFactory;
 236 }
 237