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                                         if (sl->size())
  83                                         {
  84                                                 silencelist::iterator i = sl->find(mask.c_str());
  85                                                 if (i != sl->end())
  86                                                 {
  87                                                         sl->erase(i);
  88                                                         user->WriteServ("950 %s %s :Removed %s from silence list",user->nick, user->nick, mask.c_str());
  89                                                 }
  90                                         }
  91                                         else
  92                                         {
  93                                                 // tidy up -- if a user's list is empty, theres no use having it
  94                                                 // hanging around in the user record.
  95                                                 DELETE(sl);
  96                                                 user->Shrink("silence_list");
  97                                         }
  98                                 }
  99                         }
 100                         else if (action == '+')
 101                         {
 102                                 // fetch the user's current silence list
 103                                 silencelist* sl;
 104                                 user->GetExt("silence_list", sl);
 105                                 // what, they dont have one??? WE'RE ALL GONNA DIE! ...no, we just create an empty one.
 106                                 if (!sl)
 107                                 {
 108                                         sl = new silencelist;
 109                                         user->Extend("silence_list", sl);
 110                                 }
 111                                 silencelist::iterator n = sl->find(mask.c_str());
 112                                 if (n != sl->end())
 113                                 {
 114                                         user->WriteServ("952 %s %s :%s is already on your silence list",user->nick, user->nick, mask.c_str());
 115                                         return CMD_FAILURE;
 116                                 }
 117                                 sl->insert(std::make_pair<irc::string, time_t>(mask.c_str(), ServerInstance->Time()));
 118                                 user->WriteServ("951 %s %s :Added %s to silence list",user->nick, user->nick, mask.c_str());
 119                                 return CMD_SUCCESS;
 120                         }
 121                 }
 122                 return CMD_SUCCESS;
 123         }
 124 };
 125
 126 class ModuleSilence : public Module
 127 {
 128
 129         cmd_silence* mycommand;
 130  public:
 131
 132         ModuleSilence(InspIRCd* Me)
 133                 : Module::Module(Me)
 134         {
 135
 136                 mycommand = new cmd_silence(ServerInstance);
 137                 ServerInstance->AddCommand(mycommand);
 138         }
 139
 140         void Implements(char* List)
 141         {
 142                 List[I_OnUserQuit] = List[I_On005Numeric] = List[I_OnUserPreNotice] = List[I_OnUserPreMessage] = 1;
 143         }
 144
 145         virtual void OnUserQuit(userrec* user, const std::string &reason, const std::string &oper_message)
 146         {
 147                 // when the user quits tidy up any silence list they might have just to keep things tidy
 148                 // and to prevent a HONKING BIG MEMORY LEAK!
 149                 silencelist* sl;
 150                 user->GetExt("silence_list", sl);
 151                 if (sl)
 152                 {
 153                         DELETE(sl);
 154                         user->Shrink("silence_list");
 155                 }
 156         }
 157
 158         virtual void On005Numeric(std::string &output)
 159         {
 160                 // we don't really have a limit...
 161                 output = output + " SILENCE=999";
 162         }
 163
 164         virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
 165         {
 166                 // im not sure how unreal's silence operates but ours is sensible. It blocks notices and
 167                 // privmsgs from people on the silence list, directed privately at the user.
 168                 // channel messages are unaffected (ever tried to follow the flow of conversation in
 169                 // a channel when you've set an ignore on the two most talkative people?)
 170                 if ((target_type == TYPE_USER) && (IS_LOCAL(user)))
 171                 {
 172                         userrec* u = (userrec*)dest;
 173                         silencelist* sl;
 174                         u->GetExt("silence_list", sl);
 175                         if (sl)
 176                         {
 177                                 for (silencelist::const_iterator c = sl->begin(); c != sl->end(); c++)
 178                                 {
 179                                         if (match(user->GetFullHost(), c->first.c_str()))
 180                                         {
 181                                                 return 1;
 182                                         }
 183                                 }
 184                         }
 185                 }
 186                 return 0;
 187         }
 188
 189         virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text, char status, CUList &exempt_list)
 190         {
 191                 return OnUserPreNotice(user,dest,target_type,text,status,exempt_list);
 192         }
 193
 194         virtual ~ModuleSilence()
 195         {
 196         }
 197
 198         virtual Version GetVersion()
 199         {
 200                 return Version(1,1,0,1,VF_VENDOR,API_VERSION);
 201         }
 202 };
 203
 204
 205 class ModuleSilenceFactory : public ModuleFactory
 206 {
 207  public:
 208         ModuleSilenceFactory()
 209         {
 210         }
 211
 212         ~ModuleSilenceFactory()
 213         {
 214         }
 215
 216         virtual Module * CreateModule(InspIRCd* Me)
 217         {
 218                 return new ModuleSilence(Me);
 219         }
 220
 221 };
 222
 223
 224 extern "C" void * init_module( void )
 225 {
 226         return new ModuleSilenceFactory;
 227 }
 228