src/modules/m_knock.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 "inspircd.h"
  15 #include "users.h"
  16 #include "channels.h"
  17 #include "modules.h"
  18
  19 /* $ModDesc: Provides support for /KNOCK and mode +K */
  20
  21 /** Handles the /KNOCK command
  22  */
  23 class cmd_knock : public command_t
  24 {
  25  public:
  26         cmd_knock (InspIRCd* Instance) : command_t(Instance,"KNOCK", 0, 2)
  27         {
  28                 this->source = "m_knock.so";
  29                 syntax = "<channel> <reason>";
  30         }
  31
  32         CmdResult Handle (const char** parameters, int pcnt, userrec *user)
  33         {
  34                 chanrec* c = ServerInstance->FindChan(parameters[0]);
  35
  36                 if (!c)
  37                 {
  38                         user->WriteServ("401 %s %s :No such channel",user->nick, parameters[0]);
  39                         return CMD_FAILURE;
  40                 }
  41
  42                 std::string line;
  43
  44                 if (c->IsModeSet('K'))
  45                 {
  46                         user->WriteServ("480 %s :Can't KNOCK on %s, +K is set.",user->nick, c->name);
  47                         return CMD_FAILURE;
  48                 }
  49
  50                 for (int i = 1; i < pcnt - 1; i++)
  51                 {
  52                         line = line + std::string(parameters[i]) + " ";
  53                 }
  54                 line = line + std::string(parameters[pcnt-1]);
  55
  56                 if (!c->modes[CM_INVITEONLY])
  57                 {
  58                         user->WriteServ("480 %s :Can't KNOCK on %s, channel is not invite only so knocking is pointless!",user->nick, c->name);
  59                         return CMD_FAILURE;
  60                 }
  61
  62                 c->WriteChannelWithServ((char*)ServerInstance->Config->ServerName,  "NOTICE %s :User %s is KNOCKing on %s (%s)", c->name, user->nick, c->name, line.c_str());
  63                 user->WriteServ("NOTICE %s :KNOCKing on %s",user->nick,c->name);
  64                 return CMD_SUCCESS;
  65         }
  66 };
  67
  68 /** Handles channel mode +K
  69  */
  70 class Knock : public ModeHandler
  71 {
  72  public:
  73         Knock(InspIRCd* Instance) : ModeHandler(Instance, 'K', 0, 0, false, MODETYPE_CHANNEL, false) { }
  74
  75         ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
  76         {
  77                 if (adding)
  78                 {
  79                         if (!channel->IsModeSet('K'))
  80                         {
  81                                 channel->SetMode('K',true);
  82                                 return MODEACTION_ALLOW;
  83                         }
  84                 }
  85                 else
  86                 {
  87                         if (channel->IsModeSet('K'))
  88                         {
  89                                 channel->SetMode('K',false);
  90                                 return MODEACTION_ALLOW;
  91                         }
  92                 }
  93
  94                 return MODEACTION_DENY;
  95         }
  96 };
  97
  98 class ModuleKnock : public Module
  99 {
 100         cmd_knock* mycommand;
 101         Knock* kn;
 102  public:
 103         ModuleKnock(InspIRCd* Me) : Module(Me)
 104         {
 105
 106                 kn = new Knock(ServerInstance);
 107                 if (!ServerInstance->AddMode(kn, 'K'))
 108                         throw ModuleException("Could not add new modes!");
 109                 mycommand = new cmd_knock(ServerInstance);
 110                 ServerInstance->AddCommand(mycommand);
 111         }
 112
 113         void Implements(char* List)
 114         {
 115         }
 116
 117         virtual ~ModuleKnock()
 118         {
 119                 ServerInstance->Modes->DelMode(kn);
 120                 DELETE(kn);
 121         }
 122
 123         virtual Version GetVersion()
 124         {
 125                 return Version(1,1,0,1,VF_COMMON|VF_VENDOR,API_VERSION);
 126         }
 127 };
 128
 129 MODULE_INIT(ModuleKnock);