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