src/modules/m_knock.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd: (C) 2002-2008 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 "inspircd.h"
  15
  16 /* $ModDesc: Provides support for /KNOCK and mode +K */
  17
  18 /** Handles the /KNOCK command
  19  */
  20 class CommandKnock : public Command
  21 {
  22  public:
  23         CommandKnock (InspIRCd* Instance) : Command(Instance,"KNOCK", 0, 2)
  24         {
  25                 this->source = "m_knock.so";
  26                 syntax = "<channel> <reason>";
  27                 TRANSLATE3(TR_TEXT, TR_TEXT, TR_END);
  28         }
  29
  30         CmdResult Handle (const char** parameters, int pcnt, User *user)
  31         {
  32                 Channel* c = ServerInstance->FindChan(parameters[0]);
  33
  34                 if (!c)
  35                 {
  36                         user->WriteServ("401 %s %s :No such channel",user->nick, parameters[0]);
  37                         return CMD_FAILURE;
  38                 }
  39
  40                 std::string line;
  41
  42                 if (c->IsModeSet('K'))
  43                 {
  44                         user->WriteServ("480 %s :Can't KNOCK on %s, +K is set.",user->nick, c->name);
  45                         return CMD_FAILURE;
  46                 }
  47
  48                 for (int i = 1; i < pcnt - 1; i++)
  49                 {
  50                         line = line + std::string(parameters[i]) + " ";
  51                 }
  52                 line = line + std::string(parameters[pcnt-1]);
  53
  54                 if (!c->modes[CM_INVITEONLY])
  55                 {
  56                         user->WriteServ("480 %s :Can't KNOCK on %s, channel is not invite only so knocking is pointless!",user->nick, c->name);
  57                         return CMD_FAILURE;
  58                 }
  59
  60                 c->WriteChannelWithServ((char*)ServerInstance->Config->ServerName,  "NOTICE %s :User %s is KNOCKing on %s (%s)", c->name, user->nick, c->name, line.c_str());
  61                 user->WriteServ("NOTICE %s :KNOCKing on %s",user->nick,c->name);
  62                 return CMD_SUCCESS;
  63         }
  64 };
  65
  66 /** Handles channel mode +K
  67  */
  68 class Knock : public ModeHandler
  69 {
  70  public:
  71         Knock(InspIRCd* Instance) : ModeHandler(Instance, 'K', 0, 0, false, MODETYPE_CHANNEL, false) { }
  72
  73         ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding)
  74         {
  75                 if (adding)
  76                 {
  77                         if (!channel->IsModeSet('K'))
  78                         {
  79                                 channel->SetMode('K',true);
  80                                 return MODEACTION_ALLOW;
  81                         }
  82                 }
  83                 else
  84                 {
  85                         if (channel->IsModeSet('K'))
  86                         {
  87                                 channel->SetMode('K',false);
  88                                 return MODEACTION_ALLOW;
  89                         }
  90                 }
  91
  92                 return MODEACTION_DENY;
  93         }
  94 };
  95
  96 class ModuleKnock : public Module
  97 {
  98         CommandKnock* mycommand;
  99         Knock* kn;
 100  public:
 101         ModuleKnock(InspIRCd* Me) : Module(Me)
 102         {
 103                 kn = new Knock(ServerInstance);
 104
 105                 if (!ServerInstance->Modes->AddMode(kn))
 106                         throw ModuleException("Could not add new modes!");
 107
 108                 mycommand = new CommandKnock(ServerInstance);
 109                 ServerInstance->AddCommand(mycommand);
 110
 111         }
 112
 113
 114         virtual ~ModuleKnock()
 115         {
 116                 ServerInstance->Modes->DelMode(kn);
 117                 delete kn;
 118         }
 119
 120         virtual Version GetVersion()
 121         {
 122                 return Version(1, 1, 0, 1, VF_COMMON | VF_VENDOR, API_VERSION);
 123         }
 124 };
 125
 126 MODULE_INIT(ModuleKnock)