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                 syntax = "{[+|-]<nick>}";
  43         }
  44
  45         void Handle (const char** parameters, int pcnt, userrec *user)
  46         {
  47                 if (!pcnt)
  48                 {
  49                         // no parameters, show the current silence list.
  50                         // Use Extensible::GetExt to fetch the silence list
  51                         silencelist* sl;
  52                         user->GetExt("silence_list", sl);
  53                         // if the user has a silence list associated with their user record, show it
  54                         if (sl)
  55                         {
  56                                 for (silencelist::const_iterator c = sl->begin(); c < sl->end(); c++)
  57                                 {
  58                                         WriteServ(user->fd,"271 %s %s %s!*@*",user->nick, user->nick,c->c_str());
  59                                 }
  60                         }
  61                         WriteServ(user->fd,"272 %s :End of Silence List",user->nick);
  62                 }
  63                 else if (pcnt > 0)
  64                 {
  65                         // one or more parameters, add or delete entry from the list (only the first parameter is used)
  66                         const char *nick = parameters[0];
  67                         if (nick[0] == '-')
  68                         {
  69                                 // removing an item from the list
  70                                 nick++;
  71                                 // fetch their silence list
  72                                 silencelist* sl;
  73                                 user->GetExt("silence_list", sl);
  74                                 // does it contain any entries and does it exist?
  75                                 if (sl)
  76                                 {
  77                                         if (sl->size())
  78                                         {
  79                                                 for (silencelist::iterator i = sl->begin(); i != sl->end(); i++)
  80                                                 {
  81                                                         // search through for the item
  82                                                         irc::string listitem = i->c_str();
  83                                                         irc::string target = nick;
  84                                                         if (listitem == target)
  85                                                         {
  86                                                                 sl->erase(i);
  87                                                                 WriteServ(user->fd,"950 %s %s :Removed %s!*@* from silence list",user->nick, user->nick,nick);
  88                                                                 // we have modified the vector from within a loop, we must now bail out
  89                                                                 return;
  90                                                         }
  91                                                 }
  92                                         }
  93                                         if (!sl->size())
  94                                         {
  95                                                 // tidy up -- if a user's list is empty, theres no use having it
  96                                                 // hanging around in the user record.
  97                                                 DELETE(sl);
  98                                                 user->Shrink("silence_list");
  99                                         }
 100                                 }
 101                         }
 102                         else if (nick[0] == '+')
 103                         {
 104                                 nick++;
 105                                 // fetch the user's current silence list
 106                                 silencelist* sl;
 107                                 user->GetExt("silence_list", sl);
 108                                 // what, they dont have one??? WE'RE ALL GONNA DIE! ...no, we just create an empty one.
 109                                 if (!sl)
 110                                 {
 111                                         sl = new silencelist;
 112                                         user->Extend(std::string("silence_list"), sl);
 113                                 }
 114                                 // add the nick to it -- silence only takes nicks for some reason even though its list shows masks
 115                                 for (silencelist::iterator n = sl->begin(); n != sl->end();  n++)
 116                                 {
 117                                         irc::string listitem = n->c_str();
 118                                         irc::string target = nick;
 119                                         if (listitem == target)
 120                                         {
 121                                                 WriteServ(user->fd,"952 %s %s :%s is already on your silence list",user->nick, user->nick,nick);
 122                                                 return;
 123                                         }
 124                                 }
 125                                 sl->push_back(std::string(nick));
 126                                 WriteServ(user->fd,"951 %s %s :Added %s!*@* to silence list",user->nick, user->nick,nick);
 127                                 return;
 128                         }
 129                 }
 130                 return;
 131         }
 132 };
 133
 134 class ModuleSilence : public Module
 135 {
 136         Server *Srv;
 137         cmd_silence* mycommand;
 138  public:
 139
 140         ModuleSilence(Server* Me)
 141                 : Module::Module(Me)
 142         {
 143                 Srv = Me;
 144                 mycommand = new cmd_silence();
 145                 Srv->AddCommand(mycommand);
 146         }
 147
 148         void Implements(char* List)
 149         {
 150                 List[I_OnUserQuit] = List[I_On005Numeric] = List[I_OnUserPreNotice] = List[I_OnUserPreMessage] = 1;
 151         }
 152
 153         virtual void OnUserQuit(userrec* user, const std::string &reason)
 154         {
 155                 // when the user quits tidy up any silence list they might have just to keep things tidy
 156                 // and to prevent a HONKING BIG MEMORY LEAK!
 157                 silencelist* sl;
 158                 user->GetExt("silence_list", sl);
 159                 if (sl)
 160                 {
 161                         DELETE(sl);
 162                         user->Shrink("silence_list");
 163                 }
 164         }
 165
 166         virtual void On005Numeric(std::string &output)
 167         {
 168                 // we don't really have a limit...
 169                 output = output + " SILENCE=999";
 170         }
 171
 172         virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status)
 173         {
 174                 // im not sure how unreal's silence operates but ours is sensible. It blocks notices and
 175                 // privmsgs from people on the silence list, directed privately at the user.
 176                 // channel messages are unaffected (ever tried to follow the flow of conversation in
 177                 // a channel when you've set an ignore on the two most talkative people?)
 178                 if (target_type == TYPE_USER)
 179                 {
 180                         userrec* u = (userrec*)dest;
 181                         silencelist* sl;
 182                         u->GetExt("silence_list", sl);
 183                         if (sl)
 184                         {
 185                                 for (silencelist::const_iterator c = sl->begin(); c != sl->end(); c++)
 186                                 {
 187                                         irc::string listitem = c->c_str();
 188                                         irc::string target = user->nick;
 189                                         if (listitem == target)
 190                                         {
 191                                                 return 1;
 192                                         }
 193                                 }
 194                         }
 195                 }
 196                 return 0;
 197         }
 198
 199         virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status)
 200         {
 201                 return OnUserPreNotice(user,dest,target_type,text,status);
 202         }
 203
 204         virtual ~ModuleSilence()
 205         {
 206         }
 207
 208         virtual Version GetVersion()
 209         {
 210                 return Version(1,0,0,1,VF_VENDOR);
 211         }
 212 };
 213
 214
 215 class ModuleSilenceFactory : public ModuleFactory
 216 {
 217  public:
 218         ModuleSilenceFactory()
 219         {
 220         }
 221
 222         ~ModuleSilenceFactory()
 223         {
 224         }
 225
 226         virtual Module * CreateModule(Server* Me)
 227         {
 228                 return new ModuleSilence(Me);
 229         }
 230
 231 };
 232
 233
 234 extern "C" void * init_module( void )
 235 {
 236         return new ModuleSilenceFactory;
 237 }
 238