src/modules/m_silence.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
   6  * See: http://www.inspircd.org/wiki/index.php/Credits
   7  *
   8  * This program is free but copyrighted software; see
   9  *            the file COPYING for details.
  10  *
  11  * ---------------------------------------------------
  12  */
  13
  14 #include <stdio.h>
  15 #include <string>
  16 #include <vector>
  17 #include "users.h"
  18 #include "channels.h"
  19 #include "modules.h"
  20 #include "hashcomp.h"
  21 #include "inspircd.h"
  22 #include "wildcard.h"
  23
  24 /* $ModDesc: Provides support for the /SILENCE command */
  25
  26 // This typedef holds a silence list. Each user may or may not have a
  27 // silencelist, if a silence list is empty for a user, he/she does not
  28 // have one of these structures associated with their user record.
  29 typedef std::map<irc::string, time_t> silencelist;
  30
  31 class cmd_silence : public command_t
  32 {
  33  public:
  34         cmd_silence (InspIRCd* Instance) : command_t(Instance,"SILENCE", 0, 0)
  35         {
  36                 this->source = "m_silence.so";
  37                 syntax = "{[+|-]<mask>}";
  38         }
  39
  40         CmdResult Handle (const char** parameters, int pcnt, userrec *user)
  41         {
  42                 if (!pcnt)
  43                 {
  44                         // no parameters, show the current silence list.
  45                         // Use Extensible::GetExt to fetch the silence list
  46                         silencelist* sl;
  47                         user->GetExt("silence_list", sl);
  48                         // if the user has a silence list associated with their user record, show it
  49                         if (sl)
  50                         {
  51                                 for (silencelist::const_iterator c = sl->begin(); c != sl->end(); c++)
  52                                 {
  53                                         user->WriteServ("271 %s %s %s :%lu",user->nick, user->nick, c->first.c_str(), (unsigned long)c->second);
  54                                 }
  55                         }
  56                         user->WriteServ("272 %s :End of Silence List",user->nick);
  57
  58                         return CMD_SUCCESS;
  59                 }
  60                 else if (pcnt > 0)
  61                 {
  62                         // one or more parameters, add or delete entry from the list (only the first parameter is used)
  63                         std::string mask = parameters[0] + 1;
  64                         char action = *parameters[0];
  65
  66                         if (!mask.length())
  67                         {
  68                                 // 'SILENCE +' or 'SILENCE -', assume *!*@*
  69                                 mask = "*!*@*";
  70                         }
  71
  72                         ModeParser::CleanMask(mask);
  73
  74                         if (action == '-')
  75                         {
  76                                 // fetch their silence list
  77                                 silencelist* sl;
  78                                 user->GetExt("silence_list", sl);
  79                                 // does it contain any entries and does it exist?
  80                                 if (sl)
  81                                 {
  82                                         silencelist::iterator i = sl->find(mask.c_str());
  83                                         if (i != sl->end())
  84                                         {
  85                                                 sl->erase(i);
  86                                                 user->WriteServ("950 %s %s :Removed %s from silence list",user->nick, user->nick, mask.c_str());
  87                                                 if (!sl->size())
  88                                                 {
  89                                                         // tidy up -- if a user's list is empty, theres no use having it
  90                                                         // hanging around in the user record.
  91                                                         DELETE(sl);
  92                                                         user->Shrink("silence_list");
  93                                                 }
  94                                         }
  95                                 }
  96                         }
  97                         else if (action == '+')
  98                         {
  99                                 // fetch the user's current silence list
 100                                 silencelist* sl;
 101                                 user->GetExt("silence_list", sl);
 102                                 // what, they dont have one??? WE'RE ALL GONNA DIE! ...no, we just create an empty one.
 103                                 if (!sl)
 104                                 {
 105                                         sl = new silencelist;
 106                                         user->Extend("silence_list", sl);
 107                                 }
 108                                 silencelist::iterator n = sl->find(mask.c_str());
 109                                 if (n != sl->end())
 110                                 {
 111                                         user->WriteServ("952 %s %s :%s is already on your silence list",user->nick, user->nick, mask.c_str());
 112                                         return CMD_FAILURE;
 113                                 }
 114                                 sl->insert(std::make_pair<irc::string, time_t>(mask.c_str(), ServerInstance->Time()));
 115                                 user->WriteServ("951 %s %s :Added %s to silence list",user->nick, user->nick, mask.c_str());
 116                                 return CMD_SUCCESS;
 117                         }
 118                 }
 119                 return CMD_SUCCESS;
 120         }
 121 };
 122
 123 class ModuleSilence : public Module
 124 {
 125
 126         cmd_silence* mycommand;
 127  public:
 128
 129         ModuleSilence(InspIRCd* Me)
 130                 : Module::Module(Me)
 131         {
 132
 133                 mycommand = new cmd_silence(ServerInstance);
 134                 ServerInstance->AddCommand(mycommand);
 135         }
 136
 137         void Implements(char* List)
 138         {
 139                 List[I_OnUserQuit] = List[I_On005Numeric] = List[I_OnUserPreNotice] = List[I_OnUserPreMessage] = 1;
 140         }
 141
 142         virtual void OnUserQuit(userrec* user, const std::string &reason, const std::string &oper_message)
 143         {
 144                 // when the user quits tidy up any silence list they might have just to keep things tidy
 145                 // and to prevent a HONKING BIG MEMORY LEAK!
 146                 silencelist* sl;
 147                 user->GetExt("silence_list", sl);
 148                 if (sl)
 149                 {
 150                         DELETE(sl);
 151                         user->Shrink("silence_list");
 152                 }
 153         }
 154
 155         virtual void On005Numeric(std::string &output)
 156         {
 157                 // we don't really have a limit...
 158                 output = output + " SILENCE=999";
 159         }
 160
 161         virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
 162         {
 163                 // im not sure how unreal's silence operates but ours is sensible. It blocks notices and
 164                 // privmsgs from people on the silence list, directed privately at the user.
 165                 // channel messages are unaffected (ever tried to follow the flow of conversation in
 166                 // a channel when you've set an ignore on the two most talkative people?)
 167                 if ((target_type == TYPE_USER) && (IS_LOCAL(user)))
 168                 {
 169                         userrec* u = (userrec*)dest;
 170                         silencelist* sl;
 171                         u->GetExt("silence_list", sl);
 172                         if (sl)
 173                         {
 174                                 for (silencelist::const_iterator c = sl->begin(); c != sl->end(); c++)
 175                                 {
 176                                         if (match(user->GetFullHost(), c->first.c_str()))
 177                                         {
 178                                                 return 1;
 179                                         }
 180                                 }
 181                         }
 182                 }
 183                 return 0;
 184         }
 185
 186         virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
 187         {
 188                 return OnUserPreNotice(user,dest,target_type,text,status,exempt_list);
 189         }
 190
 191         virtual ~ModuleSilence()
 192         {
 193         }
 194
 195         virtual Version GetVersion()
 196         {
 197                 return Version(1,1,0,1,VF_VENDOR,API_VERSION);
 198         }
 199 };
 200
 201
 202 class ModuleSilenceFactory : public ModuleFactory
 203 {
 204  public:
 205         ModuleSilenceFactory()
 206         {
 207         }
 208
 209         ~ModuleSilenceFactory()
 210         {
 211         }
 212
 213         virtual Module * CreateModule(InspIRCd* Me)
 214         {
 215                 return new ModuleSilence(Me);
 216         }
 217
 218 };
 219
 220
 221 extern "C" void * init_module( void )
 222 {
 223         return new ModuleSilenceFactory;
 224 }
 225