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 #include "inspircd.h"
  28
  29 /* $ModDesc: Provides support for the /SILENCE command */
  30
  31
  32 // This typedef holds a silence list. Each user may or may not have a
  33 // silencelist, if a silence list is empty for a user, he/she does not
  34 // have one of these structures associated with their user record.
  35 typedef std::vector<std::string> silencelist;
  36
  37 class cmd_silence : public command_t
  38 {
  39  public:
  40         cmd_silence() : command_t("SILENCE", 0, 0)
  41         {
  42                 this->source = "m_silence.so";
  43                 syntax = "{[+|-]<nick>}";
  44         }
  45
  46         void Handle (const char** parameters, int pcnt, userrec *user)
  47         {
  48                 if (!pcnt)
  49                 {
  50                         // no parameters, show the current silence list.
  51                         // Use Extensible::GetExt to fetch the silence list
  52                         silencelist* sl;
  53                         user->GetExt("silence_list", sl);
  54                         // if the user has a silence list associated with their user record, show it
  55                         if (sl)
  56                         {
  57                                 for (silencelist::const_iterator c = sl->begin(); c < sl->end(); c++)
  58                                 {
  59                                         user->WriteServ("271 %s %s %s!*@*",user->nick, user->nick,c->c_str());
  60                                 }
  61                         }
  62                         user->WriteServ("272 %s :End of Silence List",user->nick);
  63                 }
  64                 else if (pcnt > 0)
  65                 {
  66                         // one or more parameters, add or delete entry from the list (only the first parameter is used)
  67                         const char *nick = parameters[0];
  68                         if (nick[0] == '-')
  69                         {
  70                                 // removing an item from the list
  71                                 nick++;
  72                                 // fetch their silence list
  73                                 silencelist* sl;
  74                                 user->GetExt("silence_list", sl);
  75                                 // does it contain any entries and does it exist?
  76                                 if (sl)
  77                                 {
  78                                         if (sl->size())
  79                                         {
  80                                                 for (silencelist::iterator i = sl->begin(); i != sl->end(); i++)
  81                                                 {
  82                                                         // search through for the item
  83                                                         irc::string listitem = i->c_str();
  84                                                         irc::string target = nick;
  85                                                         if (listitem == target)
  86                                                         {
  87                                                                 sl->erase(i);
  88                                                                 user->WriteServ("950 %s %s :Removed %s!*@* from silence list",user->nick, user->nick,nick);
  89                                                                 // we have modified the vector from within a loop, we must now bail out
  90                                                                 return;
  91                                                         }
  92                                                 }
  93                                         }
  94                                         if (!sl->size())
  95                                         {
  96                                                 // tidy up -- if a user's list is empty, theres no use having it
  97                                                 // hanging around in the user record.
  98                                                 DELETE(sl);
  99                                                 user->Shrink("silence_list");
 100                                         }
 101                                 }
 102                         }
 103                         else if (nick[0] == '+')
 104                         {
 105                                 nick++;
 106                                 // fetch the user's current silence list
 107                                 silencelist* sl;
 108                                 user->GetExt("silence_list", sl);
 109                                 // what, they dont have one??? WE'RE ALL GONNA DIE! ...no, we just create an empty one.
 110                                 if (!sl)
 111                                 {
 112                                         sl = new silencelist;
 113                                         user->Extend(std::string("silence_list"), sl);
 114                                 }
 115                                 // add the nick to it -- silence only takes nicks for some reason even though its list shows masks
 116                                 for (silencelist::iterator n = sl->begin(); n != sl->end();  n++)
 117                                 {
 118                                         irc::string listitem = n->c_str();
 119                                         irc::string target = nick;
 120                                         if (listitem == target)
 121                                         {
 122                                                 user->WriteServ("952 %s %s :%s is already on your silence list",user->nick, user->nick,nick);
 123                                                 return;
 124                                         }
 125                                 }
 126                                 sl->push_back(std::string(nick));
 127                                 user->WriteServ("951 %s %s :Added %s!*@* to silence list",user->nick, user->nick,nick);
 128                                 return;
 129                         }
 130                 }
 131                 return;
 132         }
 133 };
 134
 135 class ModuleSilence : public Module
 136 {
 137         Server *Srv;
 138         cmd_silence* mycommand;
 139  public:
 140
 141         ModuleSilence(Server* Me)
 142                 : Module::Module(Me)
 143         {
 144                 Srv = Me;
 145                 mycommand = new cmd_silence();
 146                 Srv->AddCommand(mycommand);
 147         }
 148
 149         void Implements(char* List)
 150         {
 151                 List[I_OnUserQuit] = List[I_On005Numeric] = List[I_OnUserPreNotice] = List[I_OnUserPreMessage] = 1;
 152         }
 153
 154         virtual void OnUserQuit(userrec* user, const std::string &reason)
 155         {
 156                 // when the user quits tidy up any silence list they might have just to keep things tidy
 157                 // and to prevent a HONKING BIG MEMORY LEAK!
 158                 silencelist* sl;
 159                 user->GetExt("silence_list", sl);
 160                 if (sl)
 161                 {
 162                         DELETE(sl);
 163                         user->Shrink("silence_list");
 164                 }
 165         }
 166
 167         virtual void On005Numeric(std::string &output)
 168         {
 169                 // we don't really have a limit...
 170                 output = output + " SILENCE=999";
 171         }
 172
 173         virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status)
 174         {
 175                 // im not sure how unreal's silence operates but ours is sensible. It blocks notices and
 176                 // privmsgs from people on the silence list, directed privately at the user.
 177                 // channel messages are unaffected (ever tried to follow the flow of conversation in
 178                 // a channel when you've set an ignore on the two most talkative people?)
 179                 if (target_type == TYPE_USER)
 180                 {
 181                         userrec* u = (userrec*)dest;
 182                         silencelist* sl;
 183                         u->GetExt("silence_list", sl);
 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 int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status)
 201         {
 202                 return OnUserPreNotice(user,dest,target_type,text,status);
 203         }
 204
 205         virtual ~ModuleSilence()
 206         {
 207         }
 208
 209         virtual Version GetVersion()
 210         {
 211                 return Version(1,0,0,1,VF_VENDOR);
 212         }
 213 };
 214
 215
 216 class ModuleSilenceFactory : public ModuleFactory
 217 {
 218  public:
 219         ModuleSilenceFactory()
 220         {
 221         }
 222
 223         ~ModuleSilenceFactory()
 224         {
 225         }
 226
 227         virtual Module * CreateModule(Server* Me)
 228         {
 229                 return new ModuleSilence(Me);
 230         }
 231
 232 };
 233
 234
 235 extern "C" void * init_module( void )
 236 {
 237         return new ModuleSilenceFactory;
 238 }
 239