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* const* parameters, int pcnt, User *user)
  31         {
  32                 Channel* c = ServerInstance->FindChan(parameters[0]);
  33                 std::string line;
  34
  35                 if (!c)
  36                 {
  37                         user->WriteServ("401 %s %s :No such channel",user->nick, parameters[0]);
  38                         return CMD_FAILURE;
  39                 }
  40
  41                 if (c->HasUser(user))
  42                 {
  43                         user->WriteServ("480 %s :Can't KNOCK on %s, you are already on that channel.", user->nick, c->name);
  44                         return CMD_FAILURE;
  45                 }
  46
  47                 if (c->IsModeSet('K'))
  48                 {
  49                         user->WriteServ("480 %s :Can't KNOCK on %s, +K is set.",user->nick, c->name);
  50                         return CMD_FAILURE;
  51                 }
  52
  53                 if (!c->modes[CM_INVITEONLY])
  54                 {
  55                         user->WriteServ("480 %s :Can't KNOCK on %s, channel is not invite only so knocking is pointless!",user->nick, c->name);
  56                         return CMD_FAILURE;
  57                 }
  58
  59                 for (int i = 1; i < pcnt - 1; i++)
  60                 {
  61                         line = line + std::string(parameters[i]) + " ";
  62                 }
  63                 line = line + std::string(parameters[pcnt-1]);
  64
  65                 c->WriteChannelWithServ((char*)ServerInstance->Config->ServerName,  "NOTICE %s :User %s is KNOCKing on %s (%s)", c->name, user->nick, c->name, line.c_str());
  66                 user->WriteServ("NOTICE %s :KNOCKing on %s",user->nick,c->name);
  67                 return CMD_SUCCESS;
  68         }
  69 };
  70
  71 /** Handles channel mode +K
  72  */
  73 class Knock : public ModeHandler
  74 {
  75  public:
  76         Knock(InspIRCd* Instance) : ModeHandler(Instance, 'K', 0, 0, false, MODETYPE_CHANNEL, false) { }
  77
  78         ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding, bool)
  79         {
  80                 if (adding)
  81                 {
  82                         if (!channel->IsModeSet('K'))
  83                         {
  84                                 channel->SetMode('K',true);
  85                                 return MODEACTION_ALLOW;
  86                         }
  87                 }
  88                 else
  89                 {
  90                         if (channel->IsModeSet('K'))
  91                         {
  92                                 channel->SetMode('K',false);
  93                                 return MODEACTION_ALLOW;
  94                         }
  95                 }
  96
  97                 return MODEACTION_DENY;
  98         }
  99 };
 100
 101 class ModuleKnock : public Module
 102 {
 103         CommandKnock* mycommand;
 104         Knock* kn;
 105  public:
 106         ModuleKnock(InspIRCd* Me) : Module(Me)
 107         {
 108                 kn = new Knock(ServerInstance);
 109
 110                 if (!ServerInstance->Modes->AddMode(kn))
 111                         throw ModuleException("Could not add new modes!");
 112
 113                 mycommand = new CommandKnock(ServerInstance);
 114                 ServerInstance->AddCommand(mycommand);
 115
 116         }
 117
 118
 119         virtual ~ModuleKnock()
 120         {
 121                 ServerInstance->Modes->DelMode(kn);
 122                 delete kn;
 123         }
 124
 125         virtual Version GetVersion()
 126         {
 127                 return Version(1, 1, 0, 1, VF_COMMON | VF_VENDOR, API_VERSION);
 128         }
 129 };
 130
 131 MODULE_INIT(ModuleKnock)