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 /** Handles the /KNOCK command
  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 /** Handles channel mode +K
  81  */
  82 class Knock : public ModeHandler
  83 {
  84  public:
  85         Knock(InspIRCd* Instance) : ModeHandler(Instance, 'K', 0, 0, false, MODETYPE_CHANNEL, false) { }
  86
  87         ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
  88         {
  89                 if (adding)
  90                 {
  91                         if (!channel->IsModeSet('K'))
  92                         {
  93                                 channel->SetMode('K',true);
  94                                 return MODEACTION_ALLOW;
  95                         }
  96                 }
  97                 else
  98                 {
  99                         if (channel->IsModeSet('K'))
 100                         {
 101                                 channel->SetMode('K',false);
 102                                 return MODEACTION_ALLOW;
 103                         }
 104                 }
 105
 106                 return MODEACTION_DENY;
 107         }
 108 };
 109
 110 class ModuleKnock : public Module
 111 {
 112         cmd_knock* mycommand;
 113         Knock* kn;
 114  public:
 115         ModuleKnock(InspIRCd* Me) : Module::Module(Me)
 116         {
 117
 118                 kn = new Knock(ServerInstance);
 119                 ServerInstance->AddMode(kn, 'K');
 120                 mycommand = new cmd_knock(ServerInstance);
 121                 ServerInstance->AddCommand(mycommand);
 122         }
 123
 124         void Implements(char* List)
 125         {
 126         }
 127
 128         virtual ~ModuleKnock()
 129         {
 130                 ServerInstance->Modes->DelMode(kn);
 131                 DELETE(kn);
 132         }
 133
 134         virtual Version GetVersion()
 135         {
 136                 return Version(1,0,0,1,VF_COMMON|VF_VENDOR);
 137         }
 138 };
 139
 140 // stuff down here is the module-factory stuff. For basic modules you can ignore this.
 141
 142 class ModuleKnockFactory : public ModuleFactory
 143 {
 144  public:
 145         ModuleKnockFactory()
 146         {
 147         }
 148
 149         ~ModuleKnockFactory()
 150         {
 151         }
 152
 153         virtual Module * CreateModule(InspIRCd* Me)
 154         {
 155                 return new ModuleKnock(Me);
 156         }
 157
 158 };
 159
 160
 161 extern "C" void * init_module( void )
 162 {
 163         return new ModuleKnockFactory;
 164 }
 165