src/modules/m_knock.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 using namespace std;
  18
  19 #include <stdio.h>
  20 #include <string>
  21 #include "users.h"
  22 #include "channels.h"
  23 #include "modules.h"
  24 #include "configreader.h"
  25 #include "inspircd.h"
  26
  27 /* $ModDesc: Provides support for /KNOCK and mode +K */
  28
  29
  30
  31 class cmd_knock : public command_t
  32 {
  33  public:
  34         cmd_knock (InspIRCd* Instance) : command_t(Instance,"KNOCK", 0, 2)
  35         {
  36                 this->source = "m_knock.so";
  37                 syntax = "<channel> <reason>";
  38         }
  39
  40         CmdResult Handle (const char** parameters, int pcnt, userrec *user)
  41         {
  42                 chanrec* c = ServerInstance->FindChan(parameters[0]);
  43
  44                 if (!c)
  45                 {
  46                         user->WriteServ("401 %s %s :No such channel",user->nick, parameters[0]);
  47                         return CMD_FAILURE;
  48                 }
  49
  50                 std::string line = "";
  51
  52                 if (c->IsModeSet('K'))
  53                 {
  54                         user->WriteServ("480 %s :Can't KNOCK on %s, +K is set.",user->nick, c->name);
  55                         return CMD_FAILURE;
  56                 }
  57
  58                 for (int i = 1; i < pcnt - 1; i++)
  59                 {
  60                         line = line + std::string(parameters[i]) + " ";
  61                 }
  62                 line = line + std::string(parameters[pcnt-1]);
  63
  64                 if (c->modes[CM_INVITEONLY])
  65                 {
  66                         c->WriteChannelWithServ((char*)ServerInstance->Config->ServerName,  "NOTICE %s :User %s is KNOCKing on %s (%s)", c->name, user->nick, c->name, line.c_str());
  67                         user->WriteServ("NOTICE %s :KNOCKing on %s",user->nick,c->name);
  68                         return CMD_SUCCESS;
  69                 }
  70                 else
  71                 {
  72                         user->WriteServ("480 %s :Can't KNOCK on %s, channel is not invite only so knocking is pointless!",user->nick, c->name);
  73                         return CMD_FAILURE;
  74                 }
  75
  76                 return CMD_SUCCESS;
  77         }
  78 };
  79
  80 class Knock : public ModeHandler
  81 {
  82  public:
  83         Knock(InspIRCd* Instance) : ModeHandler(Instance, 'K', 0, 0, false, MODETYPE_CHANNEL, false) { }
  84
  85         ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
  86         {
  87                 if (adding)
  88                 {
  89                         if (!channel->IsModeSet('K'))
  90                         {
  91                                 channel->SetMode('K',true);
  92                                 return MODEACTION_ALLOW;
  93                         }
  94                 }
  95                 else
  96                 {
  97                         if (channel->IsModeSet('K'))
  98                         {
  99                                 channel->SetMode('K',false);
 100                                 return MODEACTION_ALLOW;
 101                         }
 102                 }
 103
 104                 return MODEACTION_DENY;
 105         }
 106 };
 107
 108 class ModuleKnock : public Module
 109 {
 110         cmd_knock* mycommand;
 111         Knock* kn;
 112  public:
 113         ModuleKnock(InspIRCd* Me) : Module::Module(Me)
 114         {
 115
 116                 kn = new Knock(ServerInstance);
 117                 ServerInstance->AddMode(kn, 'K');
 118                 mycommand = new cmd_knock(ServerInstance);
 119                 ServerInstance->AddCommand(mycommand);
 120         }
 121
 122         void Implements(char* List)
 123         {
 124         }
 125
 126         virtual ~ModuleKnock()
 127         {
 128                 ServerInstance->Modes->DelMode(kn);
 129                 DELETE(kn);
 130         }
 131
 132         virtual Version GetVersion()
 133         {
 134                 return Version(1,0,0,1,VF_COMMON|VF_VENDOR);
 135         }
 136 };
 137
 138 // stuff down here is the module-factory stuff. For basic modules you can ignore this.
 139
 140 class ModuleKnockFactory : public ModuleFactory
 141 {
 142  public:
 143         ModuleKnockFactory()
 144         {
 145         }
 146
 147         ~ModuleKnockFactory()
 148         {
 149         }
 150
 151         virtual Module * CreateModule(InspIRCd* Me)
 152         {
 153                 return new ModuleKnock(Me);
 154         }
 155
 156 };
 157
 158
 159 extern "C" void * init_module( void )
 160 {
 161         return new ModuleKnockFactory;
 162 }
 163